TOZO NC7 Truly Wireless Headphones Review

The TOZO NC7 are truly wireless in-ears with a similar design to the TOZO NC9 Truly Wireless and the TOZO T12 Truly Wireless. They're mostly made of matte plastic, and they have a glossy plastic outer ring. Their shape is rounded, which some listeners may find a bit bulky.

The TOZO NC7 are decently comfortable. They come with lots of different sizes of earbud tips to help you get the best possible fit. However, they're a little bulky, and they sit a bit deep in your ear, which may not feel comfortable for everyone. Fortunately, pressing their touch-sensitive controls doesn't push them further into your ear.

The controls are good. Tapping the left bud once lets you switch between ANC Mode and Transparency Mode, which lets in some ambient noise so you can hear people talking around you. However, you can't turn the ANC off entirely. Tapping the left bud twice skips back to the previous track, and holding it turns the volume down. You can tap the right bud once to play/pause your audio, twice to skip to the next track, and hold it to turn the volume up. If you get a phone call, you can tap either bud to answer and hold either bud to end or reject the call. Pressing either bud three times activates the voice assistant. Overall, the controls are responsive and there's lots of audible feedback, including voice prompts and beeps when you reach min and max volume.

The TOZO NC7 have superb breathability. Like most in-ears, they don't trap a lot of heat, so you shouldn't sweat more than usual while wearing them.

The TOZO NC7 are incredibly portable. They're small and lightweight. Their carrying case isn't very large, either, so it should fit easily into your pocket or bag.

The case is good. It's mostly made of plastic, and it even supports wireless charging. There are even four LED lights to indicate the battery level.

The TOZO NC7 have a good build quality. Like the TOZO NC9 Truly Wireless, they're mostly made of plastic, with a matte finish on the exterior and a glossy finish on the interior. They're even rated IPX6 for water resistance, though we don't currently test for this. However, the earbud tips seem like a potential weak point over time.

The TOZO NC7 are stable. They should stay in your ears during casual listening sessions or even moderately intense workouts at the gym. However, they don't have stability fins, so they may fall out during more intense workouts.

• TOZO NC7 headphones
• 6x ear tips
• Charging case
• USB-C to USB-A charging cable
• Manuals

The TOZO NC7 have a slightly excited, V-shaped sound profile. There's a little extra emphasis in the low-bass that adds some thump to your audio, while vocals and lead instruments are nudged slightly towards the back of the mix. Sibilants like S and T sounds are bright, but some listeners may find that they sound a bit piercing. There aren't any sound customization features, so you can't adjust their sound.

These headphones have excellent frequency response consistency. Once you get a proper fit with the included earbud tips, you should get a consistent audio delivery each time you use them.

The TOZO NC7 have impressive bass accuracy. The low-bass is overemphasized, so you really feel the deep thumps and rumbles in your audio, which is ideal for fans of bass-heavy music like EDM and hip-hop. The rest of the range is quite balanced, so the punch and fullness in the bass is present without becoming overwhelming.

The mid accuracy is very good. The range is pretty balanced, but the mid-mids and high-mids are slightly underemphasized. As a result, vocals and lead instruments are nudged slightly towards the back of the mix, and they can be weak or distant.

These headphones have decent treble accuracy. The slightly underemphasized low-treble can hurt the comprehensibility of vocals and lead instruments. However, the peak in the mid-treble makes sibilants, such as cymbals or S and T sounds, piercing and painful.

These headphones have a decent peak and dips performance. The peak in the low-bass adds thump to your audio. The dips in the mid-mids and high-mids can nudge vocals and lead instruments towards the back of the mix, and they can sound weak or distant. The peak in the mid-treble makes sibilants like cymbals piercing and painful.

The TOZO NC7 have excellent imaging. Their weighted group delay falls below the audibility threshold, resulting in a tight bass and transparent treble. Also, the L/R drivers of our test unit are well-matched in phase, frequency, and amplitude response, so objects like footsteps and voices are accurately placed and localized within the stereo image. However, these results are only valid for our test unit, and your experience may vary.

These headphones have an awful passive soundstage performance. Due to their in-ear design, they bypass the outer ear, which is one of the key factors in creating a large and out-of-body soundstage. As a result, sound seems like it's coming from inside your head, rather than from speakers placed all around you. They also have a closed-back design, so their soundstage isn't perceived to be as open as that of open-back headphones.

The TOZO NC7 have a great weighted harmonic distortion performance. All frequencies fall within good limits, resulting in clear and pure audio reproduction.

These are the settings we used to test these headphones. Our results are only valid when using these settings.

The TOZO NC7 have impressive noise isolation. With their ANC turned on, they can block out background noises such as bus and plane engines as well as voices and the hum of nearby AC units.

Note: You can't turn off the ANC feature on these headphones, though you can cycle between it and their Transparency Mode, which lets in some ambient noise. We tested these headphones completely off to measure their passive noise isolation performance for comparison.

The TOZO NC7 have an amazing leakage performance. They don't leak a lot of audio, and escaping audio sounds quite thin. You should be able to listen to music at loud volumes without really bothering those around you.

The integrated microphone has a satisfactory recording quality. Your voice should sound natural and understandable to whoever's on the other end of the line, but it can also sound a bit thin.

The microphone has a middling noise handling performance. It struggles to separate your voice from background noise, so the person on the other end of the line may have trouble understanding you, even if you're only calling from a moderately noisy setting.

The TOZO NC7 have an okay battery performance. Though they have an advertised battery life of 10.5 hours, in our tests, they lasted for just over eight hours off of a single charge. However, battery life can vary depending on usage, so your experience may vary. You can also listen to audio through one bud while the other is charging, which is handy.

Update 03/03/2022: These headphones were updated to Test Bench 1.5 and their latency values have changed. Our new test bench uses an average of three measurements instead of one. We have updated our text to better reflect these new results.

The TOZO NC7 have fair Bluetooth connectivity. They don't support NFC pairing, and you can only pair them with one device at a time. Their latency on PCs as well as on iOS and Android devices is also too high to be suitable for gaming. Keep in mind that some apps compensate for latency differently.

These headphones can't be used with a wired connection. They come with a USB-C to USB-A cable, but it's just for charging the case.

The TOZO NC7 come with a charging case that around two extra charges. You can charge it using the included USB-C cable, and it also supports wireless charging.