The Bose QuietComfort 45/QC45 Wireless are the next generation of the Bose QuietComfort 35 II/QC35 II Wireless 2018. They have a look and feel similar to their predecessor and an outstanding active noise canceling (ANC) system. Unlike the previous generation, they support SimpleSync, which lets you pair the headphones with up to two other Bose products, like soundbars and speakers, to share their audio. Their companion app is a step up over the QC35 II's since it includes a graphic EQ for sound customization. You can't turn off the ANC, but you can cycle to 'Aware' mode, which allows you to hear your surroundings without taking off the headphones.
The Bose QuietComfort 45 are good for neutral sound. Their excited sound adds warmth and boom to mixes while a bump in treble makes vocals and instruments sparkle. That said, if you want to adjust their sound, their companion app offers a graphic EQ and presets. However, the passive soundstage seems closed-off and as if coming from inside your head. Our unit's left and right drivers are also somewhat out of sync in the mid to treble range, and you can hear a mismatch using regular content. That said, this issue may be limited to our model.
The Bose QuietComfort 45 are great for commute and travel. They have a very comfortable fit, and their over 21-hour battery life will easily last you through long days on the go. They have an ANC feature, which does a remarkable job of blocking background noise like the low rumble of bus and plane engines around you. Unfortunately, you can't turn off the ANC, but you can use their 'Aware' mode to hear your surroundings without removing your headphones. While they're also a bit bulky, they come with a carrying case to help protect them.
The Bose QuietComfort 45 are good for sports and fitness. They have a very comfortable fit and a wireless design, so you don't need to worry about a cable getting snagged on something. However, they can fall off your head if you move around, like during a run. They don't have an IP rating for water resistance, which is expected for over-ear headphones.
The Bose QuietComfort 45 are great for office use. They have a comfortable fit and about 21 hours of continuous battery life for long days at the office. They support multi-device pairing, so you can stay connected with your phone and computer simultaneously. Their ANC system effectively blocks out ambient sound like background chit-chat, but unfortunately, they leak a lot of audio, which might disturb people around you.
The Bose QuietComfort 45 are mediocre for wireless gaming. You can't use them wirelessly with PlayStation or Xbox consoles, and although you can use them on Bluetooth-enabled PCs, their latency is too high to be suitable for gaming.
The Bose QuietComfort 45 are good for wired gaming. Using their 1/8" to 1/16" TRS audio cable, you can connect them to PCs and Xbox and PlayStation consoles. However, you can only receive audio, which may be disappointing if you want to chat with others while you game. On the upside, they have a very comfortable fit, and their excited sound can help emphasize sound effects in gameplay.
The Bose QuietComfort 45 are good for phone calls. Their integrated mic has a very good recording quality, so your voice sounds intelligible and natural over the phone. The app also offers a feature called 'Self Voice', which allows you to adjust how much of your own voice you hear in a call. Their ANC feature effectively blocks ambient sound around you, but the mic has disappointing noise handling, and your voice will be drowned out by background noise if you make a call in a moderately noisy environment.
The Bose QuietComfort 45 come in four color variants: 'Black,' 'White Smoke,' 'Eclipse Grey,' and 'Midnight Blue.' We tested the 'Black' variant; you can see our model's label here. These headphones also come as a variant called the Bose QuietComfort SE, which are only available in the 'Triple Black' colorway. This variant is nearly identical to the QC45 model but comes with a soft case instead of a hard case to protect the headphones from dust and minor water damage. However, they're only available via retailers like Sam's Club and Costco.
If you encounter another variant, please let us know in the comments, and we'll update our review.
The Bose QuietComfort 45 are the next generation of the Bose QuietComfort 35 II/QC35 II Wireless 2018. They have a very similar design with very comfortable padding for long listening sessions on the go. Similar to other Bose headphones like the Bose 700 Headphones Wireless, their noise isolation performance is top-notch. Their companion app offers features like a graphic EQ and presets so you can tweak their sound to suit your tastes. They also have an adjustable 'Self Voice' feature that you can use to control how much of your voice you hear while on a phone call.
Check out our recommendations for the best noise cancelling headphones, the best wireless Bluetooth headphones, and the best travel headphones.
The Bose QuietComfort Ultra Headphones Wireless have the edge over the Bose QuietComfort 45/QC45 Wireless. While both models look similar, there are a couple of changes. The Ultra are better built and have a different control scheme with a volume slider. They also have CustomTune technology, which automatically adjusts their sound, and noise cancelling performances based on your unique hearing characteristics and environment. They support Immersive Audio, too, which is an adjustable head-tracking feature that can create a more immersive sound. The QuietComfort Ultra Headphones have a greater codec selection, including aptX Adaptive. That said, the Ultra need to be powered on to be used via analog, while the QC45 support passive playback.
The Sony WH-1000XM4 Wireless are more customizable than the Bose QuietComfort 45/QC45 Wireless. The Sony are better built, and their ANC does an even better job blocking background noise. They also have a longer continuous battery life. However, the Bose are more comfortable and have a more neutral sound profile, which some users may prefer.
The Bose QuietComfort 45/QC45 Wireless and the Sony WH-1000XM5 Wireless are both high-end headphones. The Bose's ANC blocks out more of the low rumble of bus and plane engines, but the Sony do a better job of cutting down mid-range noise like ambient chatter, and treble-range sounds like the high-pitched whirl of computer fans. Their neutral sound is also much more versatile than the Sony headphones (though some people may still prefer the Sony's more bassy sound), and their fit is more comfortable. That said, the Sony have a few extra features over the Bose. The Sony support LDAC for hi-res audio, and they have a virtual soundstage feature to help give you a more immersive sound, though you need to subscribe to services that support it.
The Bose QuietComfort 45/QC45 are slightly more versatile headphones than the Apple AirPods Max Wireless. The Bose are lighter and more comfortable, delivering audio more consistently. Their integrated mic offers significantly better overall performance, and these headphones support multi-device pairing. However, the Apple feel better built and have a virtual soundstage feature. They also have the edge in noise cancelling, although both headphones still do a fantastic job in this regard.
The Bose 700 Headphones Wireless and the Bose QuietComfort 45/QC45 Wireless are both premium headphones with slightly different strengths. While both headphones have a fantastic noise isolation performance thanks to Bose's ANC technology, the QC45 are slightly better at blocking out day-to-day sounds like office chatter. They also have better battery performance and are more comfortable. On the other hand, the 700 are better built and have a better overall microphone performance.
The Bose QuietComfort 45/QC45 Wireless and the Sennheiser MOMENTUM 4 Wireless are similar headphones with different strengths. If you want headphones for your commute, the Bose are much more comfortable and have an ANC feature that blocks out significantly more noise. However, the Sennheiser support aptX Adaptive, which you can use to stream higher-quality audio or lower latency when you're watching videos. They also have a much longer continuous battery life.
The Bose QuietComfort 45/QC45 Wireless are the next generation of the Bose QuietComfort 35 II/QC35 II Wireless 2018, although they don't offer much of a significant improvement over their predecessor. Both headphones are similarly well-built and have very comfortable fits. They also have comparable battery performances. However, the QC35 II can block out slightly more background noise in the mid to treble ranges and support NFC pairing. On the other hand, the QC45 have SimpleSync, a feature that allows you to pair the headphones up to other compatible Bose headphones, speakers, and soundbars to share their audio.
The Bose QuietComfort 45/QC45 Wireless are more premium headphones than the Sennheiser ACCENTUM Wireless. The Bose are more comfortable and have a less bassy sound, which some users may prefer, and their noise isolation performance is significantly better, too. However, the Sennheiser have a longer continuous battery life.
The Bose QuietComfort Headphones Wireless are the next generation of the Bose QuietComfort 45/QC45 Wireless. Most things have stayed the same in this iteration, like comfort. However, there are a couple of interesting changes. The QuietComfort Headphones have a more bass-heavy sound than their predecessor. Their audio cable also comes with an in-line mic, which is handy if you want to take calls while wired. They have a slight edge regarding noise isolation, though you can still expect an outstanding performance from both over-ears.
The Bose QuietComfort 45/QC45 Wireless are better over-ears than the Sony WH-1000XM3 Wireless. The Bose are more comfortable, and they have an auto-off timer to help conserve battery life when you're not using them. They also support multi-device pairing. However, the Sony are better built and have an even better noise isolation performance, though both headphones are still top-notch in this regard.
The Bose QuietComfort 45/QC45 Wireless are somewhat more versatile headphones than the Apple AirPods Pro Truly Wireless. The Bose are more comfortable, have a better noise isolation performance, and have a significantly longer continuous battery life. They also support multi-device pairing, so you can connect them to your laptop and smartphone simultaneously. However, the Apple are better built, have a more stable in-ear fit, and are more portable. They also support Spatial Audio and have an H1 chip for seamless pairing with Apple devices.
The Bose QuietComfort 45/QC45 Wireless are better than the Beats Studio Pro Wireless. The Bose can block out more noise across the range and have a more comfortable fit for most people. They support multi-device pairing and give you more control over the sound profile with an in-app graphic EQ. However, the Beats have a longer continuous battery life, and they support NFC and Google Fast Pair for quicker pairing with your devices.
The Bose QuietComfort 45/QC45 Wireless are better headphones than the Sony WF-1000XM4 Truly Wireless if you prefer an over-ear design. The Bose are more comfortable, their sound has a less recessed treble, which helps ensure the clarity and detail of vocals and instruments (though some users may prefer this sound!), and they have a better overall noise isolation performance. They also have longer continuous battery life. However, the Sony are better built and have a more stable in-ear fit, making them a solid choice for workouts.
The Bose QuietComfort 45/QC45 Wireless have a few advantages over the Sennheiser ACCENTUM Plus Wireless, although it depends on your specific priorities as to which is ultimately better for your needs. The Bose are more comfortable and sound more consistent between wears. Their noise isolation is better, particularly when reducing mid and low-pitched noise, like ambient din and engine rumblings. The default sound is bright and piercing unless you use the basic EQ in-app. They also only let you listen with ANC or transparency modes on. The Sennheiser's battery life is more than twice as long-lasting. They have more connectivity options with aptX Adaptive codecs, which can allow for lower latency playback and higher resolution Bluetooth audio, plus they support USB audio. Their app offers a bit more utility with EQ and assignable touch controls. However, the Sennheisers are less portable, don't fold down, and won't filter out as much noise.
The Bose QuietComfort 45/QC45 Wireless have slight improvements over the Bose QuietComfort 35/QC35 Wireless 2016. While both headphones are very comfortable and well-built, the QC45 have a longer continuous battery life. They also have stronger noise isolation performance with bass-range noise, like the low rumble of bus and plane engines. Their mic's recording quality is better, too.
Depending on your needs, you may prefer the Bose QuietComfort 45/QC45 Wireless or the Bose QuietComfort 35 II Gaming Headset. Both are equally great headphones, but the QC45 are casual-use headphones, first and foremost. They have an integrated mic for taking calls on the go, and their companion app offers a graphic EQ and presets to help you customize their sound. However, the 35 II Gaming Headset utilizes a boom mic to ensure your voice sounds clear to enemies and teammates alike. It also comes with a PC Desktop controller, which allows you to adjust the headset's sound on the fly. Thanks to their ANC systems, both headphones have a fantastic noise isolation performance.
The Bose QuietComfort 45/QC45 Wireless are better over-ears than the Bose QuietComfort 25/QC25. While both headphones have a very comfortable fit and are well-built, the QC45 are wireless headphones that block out more bass-range noise like bus and plane engines and have longer-lasting continuous battery life. However, some users may prefer the QC25's wired AAA battery design, as you can easily replace the battery when it can't hold a charge anymore.
The Bose QuietComfort 45/QC45 Wireless are better over-ears than the Sennheiser Momentum 3 Wireless. The Bose are more comfortable and have a better noise isolation performance. They also have a longer continuous battery life. However, the Sennheiser are better built, and their app offers a parametric EQ and presets to help you adjust their sound to your liking.
The Bose QuietComfort 45/QC45 Wireless are a better value for most people than the Dyson Zone Wireless. The Bose are more comfortable, have a significantly better noise isolation performance, and are more customizable, thanks to their companion app's graphic EQ. They also support multi-device pairing and can be used wired. However, you may still like the Dyson for on-the-go air purification.
The Razer Opus Wireless 2020 offer a more customizable experience than the Bose QuietComfort 45/QC45 Wireless. The Razer are better built and have a more neutral sound profile, which some users may prefer, and their noise isolation performance is better, though both headphones are still remarkable in this regard. They also have a longer continuous battery life. However, the Bose are more comfortable and support multi-device pairing with up to two devices simultaneously.
They have a similar design to their predecessor, the Bose QuietComfort 35 II/QC35 II Wireless 2018. They have a sleek and minimalist look with a modest print of the manufacturer's logo on each ear cup. They come in the following colors: 'Black', 'White Smoke', 'Eclipse Grey', and 'Midnight Blue'.
These headphones are amazingly comfortable. They feel light and don't clamp onto your head very tightly. The ear cups and headband padding feel softer and cushier than the Sony WH-1000XM5 Wireless. Most people won't experience much fatigue, even after wearing them for a few hours.
The Bose QuietComfort 45 have great controls. There are three physical buttons located on the right ear cup, which are clicky and easy to use. There's a switch on the outside of the right earcup that powers the headphones on and off and controls Bluetooth pairing. An 'Action' button on the left ear cup also acts as a multi-purpose control. There are volume chimes for when you've reached the minimum and maximum volume and voice prompts when cycling through ANC settings. There are also voice prompts for when you're pairing the headphones. Unfortunately, there's no feedback if you're skipping tracks.
On the left ear cup:
Action button:
On the right ear cup:
Center button:
The case is great. It's made of leatherette, and it feels sturdy and solid. There's a zipper to help secure the headphones when you're on the go and has a small pouch inside to store the cables when you're not using them.
Their build quality is good, and they feel similarly well-built as the high-end Dyson Zone Wireless. The ear cup and headband padding feel soft, and the adjustable headband is made of metal, which helps make them feel sturdy. However, they're otherwise mostly made of lightweight plastic, which feels a little cheap considering their price. The hinges and yokes are also made of the same plastic as the rest of the body and feel like a weak point in the build. If you're looking for even more premium Bose headphones, try the Bose QuietComfort Ultra Headphones Wireless.
They have decent stability. They'll stay on your head while you're using them at your desk or on the couch. However, they aren't as stable as some over-ear headphones, like the Beats Studio3 Wireless, and they may fall off your head during a run. On the upside, they have a wireless design, so you don't need to worry about snagging them on something and pulling them off your head.
These over-ears deliver a slightly excited sound. Thanks to their overemphasized bass, they pack a bit of warmth and boom. Vocals and instruments are present in mixes, and with an additional bump of treble, they sparkle instead of getting lost in the mix. Luckily, if you prefer a different sound, their companion app offers a graphic EQ and presets to help you adjust their sound to your liking.
Note: Our unit's left and right drivers are somewhat out of sync in the mid-mid to low-treble range, which weakens vocals and instruments in the right driver. However, this issue may only affect our unit. If you experience this too, please let us know in the comments, and we'll update our review.
They have good frequency response consistency. Once you achieve a proper fit, seal, and positioning on your head, you'll get consistent bass and treble delivery each time you use them.
These headphones follow our target curve quite well in the bass range. Their frequency response is slightly overemphasized across the range, with the most deviation occurring in the high-bass, adding warmth and boom to mixes. In songs like Lorde's Royals, the bass drum at the beginning has a bit of extra punch and kick, but it doesn't completely overwhelm vocals or lead instruments.
The Bose QuietComfort 45's frequency response also follows our target curve well in the mid-range. The response is fairly flat and neutral across the range, resulting in detailed, accurate, and present vocals and lead instruments. However, our unit's left and right drivers are out of sync in the high-mid, so the right driver sounds weaker than the left.
Regarding the treble range, these headphones do an okay job of following our target curve. The response is a bit uneven here, with a bump in the low-treble adding detail and clarity to vocals and instruments while a dip in the mid-treble veils sibilants like cymbals.
The Bose QuietComfort 45's peaks and dips performance is good. For the most part, the peaks and dips are fairly minor. However, our unit's left and right drivers become most noticeably out of sync in the mid-mid to low-treble, so a dip in the right driver dulls the detail of vocals and instruments. A dip in the left driver's low-treble veils the upper harmonics of these sounds, while a peak in both drivers' mid-treble brightens sibilants like S and T sounds.
The Bose QC45's imaging performance is just okay. Bose usually has good quality control and makes headphones with well-batched drivers. However, our unit's group delay is slightly above the audibility threshold, indicating a slightly loose bass. At the same time, the headphones are mismatched in phase response, and the right driver sounds louder in the high-mid. You can also hear the phase mismatch in the treble range, even with real-life content. There's some mismatch present in frequency response too, which indicates holes in the stereo image. Overall, the imaging performance affects the accurate placement of objects like footsteps in the stereo image. However, imaging varies depending on the manufacturer's quality control and ergonomics.
These headphones have a poor passive soundstage. While it sounds large, the soundstage still seems like it's coming from inside your head rather than from speakers placed in the room around you. Since they also have a closed-back design, they sound less open than open-back headphones.
Unlike the Beats Studio Pro Wireless, these headphones don't have any virtual surround sound features. However, Bose has since developed their own Immersive Audio technology, found in more recent products like the Bose QuietComfort Ultra Earbuds Truly Wireless.
The Bose QuietComfort 45 have a good weighted harmonic distortion performance. All frequencies fall within acceptable limits, producing clear and pure audio reproduction.
These are the settings used to test these headphones, and our results are only valid when you use them in this configuration.
The Bose QC45's noise isolation performance is fantastic. Using the 'Quiet' ANC mode, they block out bass-range noise like rumbling engines very effectively, like the previous generation. However, the Bose QuietComfort 35 II/QC35 II Wireless 2018 and Bose 700 Headphones Wireless still have a slight edge when it comes to reducing noise in the mid and treble ranges, though the QC45 apply the ANC more evenly. That said, the QC45 can still reduce significant noise, like ambient chatter and the hum of AC units. You can't turn off the ANC but only cycle between 'Quiet,' which is ANC on, and 'Aware,' which is a talk-through mode that allows you to hear your surroundings without removing your headphones. As a result, we tested their passive isolation capabilities with the headphones turned off.
Users have reported high cabin pressure when using their unit's ANC. Cabin pressure refers to the pressure-like feeling inside your ears when the ANC is on and is similar to when a plane ascends and descends, creating a difference in pressure between your inner and outer ear. Some users may also describe this feeling as similar to being underwater. This sensation is caused by your brain perceiving the lack of low-frequency sound as a pressure difference between the inner and outer ear, which can become uncomfortable. The cabin pressure of these headphones is slightly more than normal when their ANC is on, but it won't be an issue for most users unless you're already sensitive to ANC. In comparison, other ANC over-ears, like the Apple AirPods Max Wireless, have higher and more noticeable cabin pressure, but it won't be too much of an issue for most users.
These headphones have similarly excellent noise isolation performance when it comes to more dynamic environments you'll encounter in your day-to-day life. Whether you're traveling on an airplane, walking down a busy street, or working at the office, these headphones can isolate you from a lot of ambient sound so that you can focus on your audio. With firmware update 4.0.4, their ANC improved slightly, particularly in handling busy streets and airplane noise.
As of firmware 4.0.4, these headphones have a wind reduction mode. When the wind reduction mode is enabled, it helps prevent the ANC system from creating 'anti-noise' caused by the wind directly interacting with the ANC microphones on the outside of the headphones. Basically, it reduces the annoying popping sound ANC can produce without a wind mode. The mode works with similar effectiveness regardless of the wind's angle. However, leaving the mode on can impact the ANC's performance if you're not in a windy area.
The Bose QuietComfort 45 have a passable leakage performance. Their leakage is mostly concentrated in the mid to treble range, which sounds fuller than in-ears and earbuds. People around you can hear parts if you listen to audio at high volumes in a moderately noisy environment like an office.
The integrated microphone has very good recording quality. Speech sounds natural, although a little muffled and lacking in body. Your voice is still understandable, though.
The Bose QuietComfort 45 have disappointing noise handling. The mic struggles to separate your voice from moderate ambient noise, so your voice will be drowned out if you're taking a call from somewhere like a busy street. If you're looking for Bose headphones with a better noise handling performance, it's worth considering the Bose QuietComfort 35 II Gaming Headset instead.
The Bose QuietComfort 45 have an excellent battery performance. The manufacturer advertises them to last 24 hours continuously with their ANC on and continuous audio playback set to 50% volume. However, we measured a bit less than that, though battery life can vary depending on usage. Depending on whether you connect to one or two devices simultaneously, you may also notice a difference in battery life. The manufacturer advertises them to deliver up to three hours of playtime after a 15-minute charge. If you tend to run through battery life quickly, they have an auto-off timer you can adjust in their companion app to conserve battery life.
Bose Music is a great app. It includes a graphic EQ and presets so you can customize their sound. Unlike previous generations, this app lets you connect the headphones to other Bose products using 'SimpleSync'. You can pair up to two compatible Bose speakers, soundbars, or headphones together, so you can listen to your TV's audio via your Bose soundbar without disturbing others around you. For instructions on how to connect your devices, check out Bose's FAQ here.
You can also use the app to switch between ANC modes, adjust the volume, check the battery life, and set the auto-off timer. You can also adjust 'Self-Voice' (or sidetone) volume, allowing you to hear your voice when using the mic. You can turn voice prompts on and off and switch languages. You can view, add, and change the Bluetooth sources too.
These headphones come with a 1/8" to 1/16" (3.5 mm to 2.5 mm) TRS cable that you can use to passively listen to audio with low latency. However, you can't use their mic with this connection. These headphones also come with a USB-A to USB-C charging cable.
The Bose QC45 have great Bluetooth connectivity. They support multi-device pairing with up to two devices at a time, and unlike the Bose QuietComfort 35 II/QC35 II Wireless 2018, they use Bluetooth 5.1. However, they don't support NFC for easier pairing. They also have high latency on PCs via SBC codec, causing your audio and visuals to fall out of sync. However, some apps and devices compensate for latency differently.
Some users have reported experiencing issues like as audio dropping when connected to their smartphone and PC at the same time. We retested multi-device pairing in two ways: connected to a Windows 10 PC and a Samsung S10e phone and connected to the same Windows PC and an iPhone SE. Both phones are updated to the latest firmware. We played a song on the phone and a YouTube video on the PC, alternating when one source played audio and the other was paused. However, we didn't experience any issues with either phone and couldn't replicate this issue.
The Bose QuietComfort 45 headphones can connect to Bluetooth-enabled PCs with full audio and mic compatibility. You can connect them to your PC using their included 1/8" to 1/16" (3.5 mm to 2.5 mm) TRS cable, but you can only receive audio.
You can only use these over-ears on PlayStation consoles via an analog connection. However, you can only receive audio.
They can only receive audio when connected via analog to an Xbox One or Xbox Series X|S console.