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

I was looking for a wireless model with a large battery and I found it, the headphones work without needing to be charged for two full days without running out of power. Overall, the headphones are excellent. Has some pros They maintain their charge for a period of twenty hours, nine months after the date of purchase, the sound quality is satisfactory, the sound insulation is about average, and you won't be able to hear children wailing while they are being transported: Many disadvantages: Everyone within a meter or two of you will be able to hear you if you play music at a loud volume; but, if there is a lot of other noise going on around you, this won't be as evident. They are not always comfortable to wear, particularly in the cold when combined with a scarf and a jacket. The interlocutor has a hard time hearing because to the lousy microphone. It is imperative that you maintain the bow that contains the microphone close to your lips at all times; failing to do so can cause it to snag on your clothing, which will result in an audible snap.