- 3-in-1 Mouse + Microphone + Speaker in one
- Optical Technology
- Scroll Wheel, no need to rely on scroll bar again
- high precision: 800dpi
- No need for extra power
- VoIP (skype, MSN...) Players
- 3-in-1 Mouse with Speaker and Microphone x 1 set
- if you want to use your built-in speaker in your laptop or when you don't need the speaker, just unplug the speaker connector out.