Check the listing for details. OEM Bowers & Wilkins Charging CASE for 1st Generation PI7 Earbuds Charcoal Gold. Color: Black, Condition: Used. Listed at 69.69 USD. Charging case only. 100 percent tested and works. In good cosmetic condition, ships fast and free! Does NOT include USB-C cable. Message me with any questions Charging Case with Audio RetransmissionThe includes charging case delivers convenient storage and immediately recharges your earbuds when placed inside. It has enough power on a full charge to provide up to 16 hours of playback time. The case itself can be charged via the included USB Type-C cable or wirelessly via an (optional) charging pad.When the case is not in use, you can utilize it for audio retransmission from a wired source. Simply plug in the included USB Type-C to 3.5mm audio cable into the case's USB Type-C port, and the other end into any compatible audio device. Play that device and the audio is sent into the case and streamed to your PI7 earbuds. It's an ideal solution for enjoying true wireless freedom on airplanes or with older devices.