TG series New Model: TG-638 Bluetooth specification: V5.3 wireless transmission range: 10m Battery capacity: 1200MAH built-in voltage: 3.7V playback time: About 2H speaker specification: 52mm Speaker Power: 5W charging input: 5V/ 500 MA single size: 87*88*135mm single weight: about 360g color: black red blue gray green peacock blue 6 colors packing quantity: 50 PCS weight per piece: net weight 22.3KG gross weight 23.5KG carton size: 48.5*32.5 * 49CM function: Bluetooth function, handheld, support FM radio, USB,TF card, AUX playback, call function