1. Two USB 2.0 ports, high speed transmission and download
2. USB multifunctional card reader
3. Super mini stereo speakers with perfect sound output
4. Adjustable volume
5. Internal highly sensitive microphone with "PTT" (Push To Talk) function to let you chat with others conveniently
6. Sound switch makes the sound and light easily controlled
7. Connected to external speakers, earphone or microphone freely
8. Suitable for any kinds of mice to move on it freely
9. System requirement: Windows ME/2000/XP and Mac OS, no driver needed
10. DC jack provides you stable power supply under certain circumstances, adapters should be chosen according to 5V/500mA requirement
11. Dimensions (W x L x H): 279 x 240 x 28mm