SONY WF-1000XM4 black, right earbud only, tested and working. Shipping will be via Yu-Packet Plus, packaged with bubble wrap. As shown in the first photo, there is a dent in the red circle area, which occurred when it was dropped. To reiterate, functionality has been confirmed. The current software version is "2.1.0". From a full charge, it can be used for approximately 1.5 to 2 hours (estimated).