Panasonic Technics EAH-AZ100 Left ear only Color: Black No operational issues, and the battery life is not a problem. Will ship after initialization, so please re-pair the left and right sides and configure settings in the app (Technics Audio Connect) yourself. The condition is based on personal opinion, so please refer to the photos. Please consider purchasing only if you understand that this is a used item and can overlook minor imperfections. Shipping will be via Yu-packet Mini.