Portable speaker power rating 4 watt speaker system 20 stereo principle active impedance 4 ohm power supply rechargeable battery battery life 12 h charge time 45 hrs type of battery lithium ion battery capacity 2 000 mah colour white function sleep timer design mini speaker number of full range drivers 1 analogue input 35mm jack line in width 70 mm height 70 mm depth 70 mm weight 062 kg area of use mobile phone en route installati