Max 20W bulb included
Built-in transformer: 230V, 120V or 240V to 12V
Arm: gooseneck arm
Switch: on/off rocker
Rotational joint
Support all iPod models and audio players with a headphone port
Features of speakers:
100Hz to 9KHz frequency response
Requires no power
Neodymium magnets enhance audio performance
4W maximum power(2W x 2)