Notebook Desk with Built-in 2.1 Speakers & Cooling Fans
Features

 2.1 Stereo: two 5W speakers & one 10W subwoofer.
 Powered through USB from your notebook or 4 Size-D batteries
 No additional software or driver needed.
 Built-in ultra-silent cooling fans.
 Foldable table legs
 Audio Input for MP3 players, Portable DVD players, and Game consoles
 Works with all laptops
 Control buttons: Power On/Off, Fans On/Off, Mute, Volume Down, Volume Up
 Compatible with Win98 SE/ Win ME/ Win 2000/ Win XP/ Win Vista and MAC OS9/OSX

Specification:
Dimension: 645 x 375 x 40 mm  Stand: 280mm
 Weight: 5kg G.W.
 Material: ABS Plastic
 Certifications: FCC, CE, RoHS
Power Requirement
 USB Bus Power
 Battery Type: D/Voltage: 1.5V x 4
Cooling Fans
 RPM: 1500
 CFM: 28
 Noise Level: 25dbA
 2.1 Stereo Speakers
 Amplifier: Class D
 Speakers: 5W each / Subwoofer: 10W