Features: 1) Commercial grade high quality speakerphone, ideal for conference calls 2) Large LCD with backlight 3) Phone ring for incoming calls, ring style and volume selectable 4) Dial skype contacts (speed dial number) and skype out number by phone keypads 5) Caller ID function of skype calls 6) 199 incoming calls and 199 dialed numbers 7) Echo cancellation, noise reduction, full duplex communication 8) PC-to-PC, PC-to-phone, Phone to Phone operation 9) Hardware: a) No external power required b) USB power LED indicator c) Driver and sound card built-in 10) Interface: 1 USB interface to PC 11) System requirement: a) Windows 2000 or XP b) 400MHz processor and free USB 1.1 or USB 2.0 port c) 128MB RAM and 15 MB free disk space d) Internet connection (33.6Kbps modem, or any broadband: cable, ADSL)