*12 classical 4-polyphonic ring tones catering to different tastes.

*Rings loudly on an incoming call,Can use for PC to PC and PC to Phone.

*Supplied earphone for hands-free operation

*Fully functional keypad and enables  you to maker/recerive calls even easier.

*Mic. mute button for privacy protection.

*USB interface PnP. No external power/sound card needed.

*compatible with other PC-based softphones

*Power LED and Status LED

*Compatible with below eight VoIP service:Skype,VoipBuster,VoipStunt,

VoipCheap,SparVoip,VoipDiscount,InternetCalls,NetAppel