Mighty boom ball vibration speaker white
Portable speaker speaker system 20 stereo principle active amplifier type digital power supply rechargeable battery colour white design mini speaker analogue input 35mm jack line in width 35 mm height 35 mm depth 35 mm area of use en route garden attach boomball to another object to amplify sound amplify up to 20 metres away connects to most audio devices and mp3 players uses 2 x aaa batteries