Panasonic Technics EAH-AZ100 Left ear only Color: Silver There are no operational issues, and the battery life is not a problem. The left earbud earpiece is included. It will be shipped after initialization, so please configure the left and right pairing etc. 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. #Because it is also listed on other sites, it may be out of stock.