All-new custom-designed drivers, Superb fit and comfort in a compact size Earphones with Microphone and Volume Control for Android Devices.
All-new custom-designed drivers, Superb fit and comfort in a compact size Earphones with Microphone and Volume Control for Android Devices.
All-new custom-designed drivers, Superb fit and comfort in a compact size Earphones with Microphone and Volume Control for Android Devices.
All-new custom-designed drivers, Superb fit and comfort in a compact size Earphones with Microphone and Volume Control for Android Devices.
Last updated at 08/23/2026 09:35:44
HIFIMAN RE-400a Waterline In-Ear Earphones for Android by Addicted To Audio
Delivery $10
Hifiman Re400 In Ear Earphone Silver Hifi Audiophile High Performance
Delivery $7.66
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hifiman Re400a Hifi In Ear Monitor (earphone/earbuds) With Mic For
Delivery $18.42
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
HiFiMAN RE400a In-ear Monitor/IEM Earphones
originally posted on ebay.com
Best sound you can get for $50
originally posted on ebay.com
These earphones are a big disappointment. There is no bass and the treble is mushy. Moreover, they stick out of the ears a fair way, so they are uncomfortable to wear. There are many better options in the market
originally posted on ebay.com
Hifiman has managed to create an IEM which has among the lowest THD ever measured (actually regardless of it being an IEM. Its THD is one of the lowest ever measured in a sound reproduction system), if not the lowest (as far as one can compare from the information on the internet), this translates to an extremely clean sound reproduction. Frequency response might not fit everyone's taste, but due to the very linear and smooth nature of it, can be very easily equalized. In order to get the most linear FR, one should insert them quite deep in the ear canal, which can be quite uncomfortable at first (with the original tips. I had no problem whatsoever when I used the Logitech UE900 tips instead), but I got used to it pretty quickly. There are plenty of tips for ... MoreHifiman has managed to create an IEM which has among the lowest THD ever measured (actually regardless of it being an IEM. Its THD is one of the lowest ever measured in a sound reproduction system), if not the lowest (as far as one can compare from the information on the internet), this translates to an extremely clean sound reproduction. Frequency response might not fit everyone's taste, but due to the very linear and smooth nature of it, can be very easily equalized. In order to get the most linear FR, one should insert them quite deep in the ear canal, which can be quite uncomfortable at first (with the original tips. I had no problem whatsoever when I used the Logitech UE900 tips instead), but I got used to it pretty quickly. There are plenty of tips for different fits, though none seem to be high quality. When the cable is worn behind the ear, microphonics is very low. I have heard many horror stories about the cable which disconnects quite easily, but I don't have any suggestions how to strengthen the connection. I can only hope it won't happen to the pair I bought. To sum up: Pros: - High quality, accurate sound reproduction - Smooth, easy to EQ frequency response - Very small and comfortable (unless you decide to go all the way...) - Aesthetically pleasing - The best one can get for the price - Almost perfect impulse response (no unwanted resonance - hence clean signal) Cons: - Weak cable - headphone connection - Tips are quite slim and not too comfortable - Cable is not as flexible as the ones coming with high-end custom IEMs *Based on measurements from Innerfidelity and rinchoi's blog.
| Driver | 8.5mm |
| Impedance | 32 OHM+/- 3.2 |
| Sensitivity | 102dB/1mW |
| Rated power | 10mW |
| Frequency response | 15-22 KHZ |
HIFIMAN RE-400a Waterline In-Ear Earphones for Android by Addicted To Audio
Delivery $10
Hifiman Re400 In Ear Earphone Silver Hifi Audiophile High Performance
Delivery $7.66
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hifiman Re400a Hifi In Ear Monitor (earphone/earbuds) With Mic For
Delivery $18.42
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
HiFiMAN RE400a In-ear Monitor/IEM Earphones
Best sound you can get for $50
These earphones are a big disappointment. There is no bass and the treble is mushy. Moreover, they stick out of the ears a fair way, so they are uncomfortable to wear. There are many better options in the market
Hifiman has managed to create an IEM which has among the lowest THD ever measured (actually regardless of it being an IEM. Its THD is one of the lowest ever measured in a sound reproduction system), if not the lowest (as far as one can compare from the information on the internet), this translates to an extremely clean sound reproduction. Frequency response might not fit everyone's taste, but due to the very linear and smooth nature of it, can be very easily equalized. In order to get the most linear FR, one should insert them quite deep in the ear canal, which can be quite uncomfortable at first (with the original tips. I had no problem whatsoever when I used the Logitech UE900 tips instead), but I got used to it pretty quickly. There are plenty of tips for ... MoreHifiman has managed to create an IEM which has among the lowest THD ever measured (actually regardless of it being an IEM. Its THD is one of the lowest ever measured in a sound reproduction system), if not the lowest (as far as one can compare from the information on the internet), this translates to an extremely clean sound reproduction. Frequency response might not fit everyone's taste, but due to the very linear and smooth nature of it, can be very easily equalized. In order to get the most linear FR, one should insert them quite deep in the ear canal, which can be quite uncomfortable at first (with the original tips. I had no problem whatsoever when I used the Logitech UE900 tips instead), but I got used to it pretty quickly. There are plenty of tips for different fits, though none seem to be high quality. When the cable is worn behind the ear, microphonics is very low. I have heard many horror stories about the cable which disconnects quite easily, but I don't have any suggestions how to strengthen the connection. I can only hope it won't happen to the pair I bought. To sum up: Pros: - High quality, accurate sound reproduction - Smooth, easy to EQ frequency response - Very small and comfortable (unless you decide to go all the way...) - Aesthetically pleasing - The best one can get for the price - Almost perfect impulse response (no unwanted resonance - hence clean signal) Cons: - Weak cable - headphone connection - Tips are quite slim and not too comfortable - Cable is not as flexible as the ones coming with high-end custom IEMs *Based on measurements from Innerfidelity and rinchoi's blog.
| Driver | 8.5mm |
| Impedance | 32 OHM+/- 3.2 |
| Sensitivity | 102dB/1mW |
| Rated power | 10mW |
| Frequency response | 15-22 KHZ |