... hours. Charging via power adapter or USB to computer system.BluetoothBuilt-in BQB patent certification and quality guarantee with high ... energy consumption and noise reduction module, Bluetooth receive and Bluetooth wireless audio chatting,.One button to switch easily..FM radioBuilt-in ... , Heavy bass high simulation speakers.In the BoxColorful box, BH-001, User Manual, USB cable, Charger G.W: 0.3pound ...