USB Sound Optical Mouse

Model ; MD-555
     Frequency response:100HZ-18KHZ
     S/Nratio:greater than and amount85db
     Distortion:less than and amount 5%
     Rating:5v-300mA
     Power:800mw
Operation guide
1. Insert the USB plug of the mouse to the computer USB plug which connect the
  computer.
2. With the USB automatic detection system, the computer can automatically detect
  and recognize the mouse .No additional driver installation is required.
3. After successful installation of the mouse, user may browse conveniently with
  the right and left click buttons and scroll up and down with the center button.
4. To activate the audio function of the mouse (with USB audio device compatible
  computer), and function should pop-up after installation in point.
5. By opening, the audio function would be activated. Please refer the following for
  details.
6.User may apply different audio frequently broadcast software to control and adjusts
  the volume and frequencies at your choice.