Thank you for viewing. The battery drains quickly on these earphones, so I replaced the original ZeniPower Z52H batteries with new ones. I have confirmed that both the earphones and the case are functioning properly. I believe that issues specific to this model, such as incomplete charging and rapid battery drain, have been resolved, allowing for comfortable use. Please consider purchasing. There are no noticeable scratches or stains on either the earphones or the case. Regarding the battery status, I have included test results showing 2 hours of continuous playback with noise canceling ON and volume at 50%. Please refer to these when considering your purchase. The battery status of the charging case is also included. The device has been reset, so pairing should be smooth. The software version has been updated to the latest version, 4.2.1. The included ear tips and cable are unused. The ear tips attached to the earphones have been used. They have been cleaned. Please understand that the earphone body and case are used items. I will clean and disinfect the items with alcohol before shipping. Please see the product description here: https://www.sony.jp/headphone/products/LinkBuds_S/?srsltid=AfmBOopwvYJkcO64rWRk6fXTEh7FC5vnrGGBKaagegr54M_TE1XyyoE4 Other features... Noise canceling Sony Model Name... LinkBuds S