1. Compatible with Skype seamlessly and could be used on all software platform 2. Free- -PC screen operation: With 128X64 dot matrix LCD display, state prompt and all the Skype titles such as Contacts, Dial and Call list could be displayed on it 3. With green backlight, more clear 4. Support different languages displaying 5. Personalized start-up LOGO able 6. User-defined hot-key 7. Support quick search contacts 8. PnP USB interface, compatible with USB1.1 9. Single-chip solution makes echo cancellation, noise reduction and high reliability 10. With built-in ringer, personalized rings able and volume adjustable 11. Keypad-dialing with key-in tone 12. No need sound card 13. No extra power required 14. Full duplex communication