... light weight.9. USB 1.0 & 2.0 compatible, No driver required. 10. Mac and PC compatible. 11.Support Skype, UUcall ... indicator.3. Volume+, volume-, mute speaker and microphone buttons.4. Driver and sound card built-in.Interface: 1. One USB interface ... Connection (33.6 Kbps modem, or any broadband: cable, ADSL.) wt-501g