Thank you for viewing. Purchased around spring 2024. Used a few hours a few times a week. There is no noticeable battery degradation or malfunction. There are some areas where the color has transferred because it was kept in a red silicone case. ATH-TWX7, wireless earphones compatible with Hi-Res Audio. Immediate purchase ○, Please refrain from price negotiations as I do not plan to lower the price for a while. - Brand: audio-technica - Model Name: ATH-TWX7 - Connectivity: Wireless - Features: Hi-Res Audio compatible - Accessories: Charging case, cable, bag, etc. Other features: Noise canceling