Griffin Technology PowerMate Bluetooth Gold I didn't use it much after purchasing it. It seems to be for Mac only. I don't know if it can be used with the latest Macs. The battery is new from when I bought it, but I don't know the remaining charge. I confirmed that it turns on before listing it. The box is damaged. Immediate purchase is possible. I will not make it exclusive. Please refrain from asking questions after purchase. Please make requests regarding shipping before purchasing. I cannot accommodate requests after purchase. I cannot answer questions with standard phrases. The shipping method may change without notice. The shipping area may be from a neighboring prefecture.