Macally Cooling stand 2.1 stereo speakers 4W Black loudspeaker

Cooling stand 2.1 stereo speakers Features :
- USB Bus Powered Speakers and Cooling fan
- AC/DC adapter included to boost the audio performance
- Line-in jack to support other audio or MP3 Players
- Compatible with any laptop computers 17” and under
- On/Off switch for cooling fan and amplifier
- Complete 2.1 audio system with superior sound quality to accentuates your favorite music
- Ultimate thermal solution to cool down your notebook
- High efficiency and high performance Class D amplifier
- High quality speaker Drive: Right/Left 2” 2W x2, Subwoofer 2 1/4” 10W
- Supports both USB 2.0 and USB 1.1