Portable speaker effective output 6 watt speaker system 20 stereo principle active frequency response 100 20000 hz amplifier type digital power supplies usb rechargeable battery batteries battery life 20 h colour green front colour black design mini speaker analogue input 35mm jack line in analogue outputs 35mm jack output line out width 178 mm height 95 mm depth 64 mm weight 034 kg area of use en route garden