Bluetooth speaker portable speaker power rating 70 watt effective output 240 watt principle active frequency response 37 40000 hz amplifier types class d x2 digital x2 power supply rechargeable battery battery life 24 h charge time 25 hrs type of battery lithium ion battery capacity 2 200 mah charging port usb c colour grey housing surface leather housing material plastic enclosure functions streaming dual speaker pairing controllable via bu