SONY wireless earphones (WI-C100). These have good battery life (up to 25 hours), and the sound quality for music playback is very clear and good. The previous owner used them for about six months, and they are in good condition with no noticeable scratches or stains. 【⚠️Please read before purchasing⚠️】 ① Microphone Function Although not a malfunction, the microphone sensitivity feels low. During calls, you may need to hold the microphone close to your mouth for the other person to hear you clearly. Therefore, these are strongly recommended for those who primarily use them for "music/video viewing" rather than "making calls." ② Transaction Conditions ・No price reduction ・No returns: Returns or cancellations based on the above-mentioned microphone characteristics or the fact that they are used items will not be accepted. ※Alcohol-sterilized and cleaned Please purchase only if you agree to the above. #SONY #Sony #WirelessEarphones #BluetoothEarphones #WIC100 #Earphones