Review on Sony - C400 Wireless Behind-Neck In Ear Headphone White (WIC400/W) by Agung Casanova ᠌

The headphones are great on their own, and as a headset they really shine. I plugged in an adapter (Bluetooth 4.0), but the computer's microphone isn't working properly, so my conversation partner can only hear me if I speak very slowly and quietly. Comparatively, there is a laptop equipped with Bluetooth 5.0, allowing users to simultaneously participate in online chat applications like Discord and Skype without any interruptions. After a year of use, the purple LED began flashing and the lights eventually ceased functioning altogether. I exchanged them under warranty for a new pair, and a month later the same issue occurred. I didn't send them back because I figured they deserved a rest after 3 or 4 days, but I do think that rain or sweat from jogging would be enough to render the headphones useless. In spite of the fact that I am primarily to blame, I have found that even after a few droplets of water have been splashed over the body of the device, it continues to function normally for three to four days. Speaking of dependability, after three months, something changed in the right earpiece, making it less audible and introducing a creaking and whistling sound.