Optical USB Mouse_x000D_
USB1.1 & 2.0 interface PnP. No need for driver._x000D_
Comfortable,colorful,and stylish design._x000D_
For both right-handed and left-handed users._x000D_
Precise tracking with 800dpi optical sensor._x000D_
Service life:10,000,000 click _x000D_
Keyboard operating force:60±15g _x000D_
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USB VoIP phone:_x000D_
Built-in USB sound card. No need for any external audio device._x000D_
Built-in microphone and speaker with a unique echo-cancellation technology to ensure the crystal clear voice quality._x000D_
Hands-free function._x000D_
Hi-Fi sound quality with 16 Bit 48KHz sampling rate._x000D_
Built-in speaker and earphone connector for receiving call easily and protecting privacy._x000D_
Call & cancel button for call convenience._x000D_
Support multiple VoIP service, Easily switch between various VoIP services._x000D_
Various chord music ring tone for incoming call._x000D_
Adjusting volume with the increase & decrease buttons._x000D_
Support many VoIP service, such as Skype, VoIPBuster, VoIPStunt, VoIPCheap, VoIPDiscount, SparVoIP, Internetcalls, poivY, WebCallDirect, VoIPCheapCom, FreeCall and NetAppel._x000D_
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System Requirements_x000D_
IBM PC and its compatible ones_x000D_
Support the following os:Windows 98/ME/NT4.0/2000/XP/Vista_x000D_
One USB port or PS/2 Port available.(The USB port requires the OS of Windows 98/ME/2000/XP)