1.compatible with voip (voice over internet protocol) solution such as skype 2.works as microphone & earphone with yahoo messenger, msn messenger 3.ms netmeeting and etc. 4.hot-key functions to operate skype software as easy as dialing a normal telephone 5.echo-cancellation for better sound quality 6.8 types of ring tones for incoming call alert 7.use dot matrix lcd module (116x64) 8.supports multi-language(english,japanese,germany,traditional/simplified chinese) 9.lcd backlight turns on while receiving a call or any key is pressed 10.as a speaker to broadcast music from pc 11.lcd to display caller id, contact list and calling list 12.compliant with usb 1.1 specification 13.no additional power adapter required 14.display skype out balance. e-mail: danny@vnetphone.com