Technics EAH-AZ80 Black - Charging case only. Functionality such as charging has been confirmed. Regardless of the condition, it has been thoroughly cleaned with alcohol, etc. Please understand that this is a used item. It has been used for about a year and a half, so there is some wear and tear. It was kept in a silicone case, so it's relatively clean. Please be sure to initialize it with your existing earphones before use. Please refer to this site for initialization and pairing: https://jpn.faq.panasonic.com/app/answers/detail/a_id/4425/hb_cd/EAH-AZ80 It will be sent via anonymous delivery. Type: Canal type Connection type: Wireless Features: Bluetooth, Noise Canceling Case only, black, BLACK, Bluetooth, Panasonic, Technics Genuine product, authentic, fully wireless earphones, earphone, charger, battery, battery charger case, charger, noise canceling, noise canceling, external sound input Other features: Noise canceling