The Panasonic EY37C5 Wireless Speaker uses a simple wireless Bluetooth connection, its 5W output gives a clear and strong sound. Volume can be adjusted either via your smartphone or on the unit. The head can be tilted up to 180 (7 positions), rotation angle up to 270 (step-free rotation, not 360). It has a compact body that is easy to handle and transport, even when a battery is attached. A hook is provided on the handle for further convenience. There are also 2 x Type A USB ports, ideal for recharging your smartphone, tablet etc. It can also charge during playback. Useful where mains power is not available. Compatible with both 14.4V and 18V Panasonic batteries. Comes as a Bare Unit, NO Batteries or Charger. Specification: Dimensions (LxHxD): 162 x 70 x 99mmBare Unit Weight: 380g