The Sony MH755 are wired in-ear monitors (IEM) that have grown quite popular online, thanks to their fairly neutral sound profile at a budget-level price. Unlike most other headphones, you can't directly purchase them from Sony on their own. When they were first released, they were bundled with certain Sony Bluetooth devices like music players, which are now discontinued. Due to demand, third-party retailers with varying degrees of trustworthiness entered the market, offering only the IEMs. However, they're getting rarer to find as they aren't mass-produced. Also, due to their non-descript plastic packaging and cult popularity, it's easy to accidentally purchase a fake pair. We've even tested and reviewed a counterfeit version: the Sony MH755 (Fake).
We've managed to get ahold of a genuine pair via a seller on eBay, and they easily outperform the knockoff. Although they lack features like a mic or controls that more casual users may prefer, their sound profile is slightly bass-rich, with a touch of extra thump, body, and warmth that shouldn't overwhelm vocals and lead instruments. They also have a good build quality and aren't as prone to distortion at high volumes as the fake. However, some users may find their cable to be very short and impractical.
Our Verdict
The Sony MH755 are good for neutral sound. They have a very slightly bass-heavy sound profile that adds a touch of extra thump, rumble, and boom to mixes. They're still neutral enough for a variety of audio content, though, and they can reproduce vocals and lead instruments clearly. They're also less prone to distortion at high volumes than fake units. However, their passive soundstage isn't very immersive, which is to be expected for most in-ears.
- Very consistent audio delivery.
- Breathable and decently comfortable fit.
- Bad passive soundstage.
The Sony MH755 are sub-par for commute and travel. Unfortunately, they struggle to block out the low rumble of bus and plane engines and have a very short cable, so if you're using your smartphone, you won't be able to put it in your pocket. They also lack controls, so you need to use your device to adjust the volume or skip tracks. On the upside, they're decently comfortable, breathable, and have a well-built design.
- Breathable and decently comfortable fit.
- Well-built design.
- No controls.
- Struggle to block out bass-range background noise.
- Bad passive soundstage.
The Sony MH755 are just okay for sports and fitness. They have a wired design, which could get snagged on something while you're moving and pull them out of your ears. They also lack an IP certification for dust and water resistance. That said, they have a decently comfortable and stable in-ear fit.
- Breathable and decently comfortable fit.
- Well-built design.
- No controls.
- Bad passive soundstage.
The Sony MH755 are middling for office use. They don't have any controls, have a very short cable, and lack a mic, which can be a little frustrating if you need to take calls. However, they have a comfortable and breathable fit. They also have a well-built design and don't leak too much audio at high volumes, so you shouldn't disturb your coworkers if you like to jam to your favorite tunes with the volume up.
- Breathable and decently comfortable fit.
- Can reduce office range noise.
- No mic.
- No controls.
- Bad passive soundstage.
The Sony MH755 are wired headphones, and you can't use them wirelessly.
The Sony MH755 are acceptable for wired gaming. If you don't need a mic, you can use them on any console so long as it has an AUX port. These in-ears have a slightly bass-heavy sound profile that can help emphasize sound effects in your gameplay. They also have a decently comfortable fit and feel well-built. However, they lack controls, and their passive soundstage isn't very immersive or open.
- Very consistent audio delivery.
- Breathable and decently comfortable fit.
- No mic.
- Bad passive soundstage.
The Sony MH755 aren't suitable for phone calls as they don't have a mic.
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Differences Between Sizes And Variants
The Sony MH755 come in a few color variations, although it's hard to know which colors are genuine, especially as these in-ears weren't directly sold by Sony on their own. Users also tend to modify their cables and ear tips to fit their usage. However, you can see our model's label here. Note the placement of the garbage symbol on the bottom of the label, not the top of the label, which is one of the ways to tell if your pair are genuine or counterfeit. You can also see a comparison between our genuine unit and our fake unit's label here.
If you come across another variant, please let us know in the discussions, and we'll update our review.
Popular Headphones Comparisons
The Sony MH755 are budget-level IEMs that are hard to find genuine. If you manage to get a real pair, they have a slightly bass-rich sound profile that adds a bit of extra thump, rumble, and boom to tracks. It's not too overwhelming, though, so vocals as well as lead instruments sound clear, accurate, and detailed. They also have a significantly better build quality than the Sony MH755 (Fake), and they can block out more background noise. However, they may not be suitable for users looking for a versatile audio experience as they lack controls and a mic.
If you're looking for more headphones, check out our recommendations for the best sounding wireless earbuds, the best studio headphones for mixing and recording, and the best cheap wireless earbuds.
The genuine Sony MH755 are better headphones than the counterfeit Sony MH755 (Fake), which is to be expected. The real pair have a significantly better build quality, a more neutral sound profile, which some users may prefer, and their audio cable is longer. They can also isolate you from more background noise.
The Sony MH755 are better in-ear monitors than the TIN Audio T2. The Sony are more comfortable, have a more neutral sound profile, which some users may prefer, and have more consistent audio delivery. They're also able to block out a bit more background noise. However, the TIN are better built.
The Samsung AKG Type-C and the Sony MH755 have different strengths, and you may prefer either one. The Samsung use a USB-C connector and can only connect to corresponding devices such as newer smartphones. They're also more comfortable and have an in-line mic, which is handy if you like to take calls on the go. However, the Sony use a 1/8" TRS cable. They have a more stable in-ear fit, their sound profile is somewhat more neutral, which some users may prefer, and they can block out more ambient noise around you.
The Samsung Galaxy Buds+ and the Sony MH755 have different strengths, and you may prefer either one. The Samsung are truly wireless earbuds with a more comfortable and stable fit, their sound profile is more neutral, which some users may prefer, and they have a mic so they can take calls on the go. However, the Sony can block out more ambient noise, and thanks to their wired design, have virtually no latency.
Our How We Test Headphones article takes you behind the scenes in our lab. You'll learn how we choose and purchase products and dive into the details of our review philosophy, from testing and scoring to writing and editing.
You can also discover how we produce recommendations like this one so that you can find the best headphones (or earbuds!) for your needs.
Test Results
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