Operating System: Windows 98/ME/2000/XP
Comply with USB V1.1.
Comply with USB Audio Device Class Spec V1.0.
Comply with USB HID Version1.1.
Class-A USB linker.
Dimension: 106.8mm*42.5mm*19.2mm.
Weight: 165g.
Operating Voltage: 4V-5.25V DC
Operating Temperature:-10 to 40°C
Rrlative Humidity:10% to 95%

Compatible with VoIP (Voice over Internet Protocol) solution such as Skype.
Works as microphone & earphone with Yahoo Messenger, MSN Messenger, MS NetMeeting and etc.
Hot-key functionstooperateSkypesoftwareaseasyasdialinganormal telephone.
Echo-cancellation for better sound quality
9 types of ring tones for incoming call alert
Use dot matrix LCD module (128x64).
Supports multi-language (English, Japanese,germany,Traditional/Simplified Chinese)
LCD backlight turns on while receiving a call or any key pressed
AS a speaker to broadcast music from pc
LCD to dosplay caller ID contact list and calling list (Miss ,Income,Outgoing)
Compliant with USB 1.1 specification
No additional power adapter required
MIC mute button for privacy protection.
Display Skype out balance.