Panasonic Technics EAH-AZ100 Case only Color: Gold There are no operational issues, and the battery life is not a problem. It will be shipped after initialization, so please configure the left and right re-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 forgive any minor oversights. Shipping will be via Yu-packet Mini.