DCH-b668B-330-2SJ
Specifications:
Speaker Size:	φ30
Impedance:	32Ω
Sensitivity:	108dB±3dB at 1KHZ
Frequency Response:	20-20,000HZ
Max Input Power:	60mW
Microphone:	φ6×5
Polar Pattern:	omni-directional
Sensitivity:	-58±3dB
Frequency:	1000HZ
Weight:	75g
Cord Length:	1.8metres
Jack Type:	3.5mm plug
Can be compatible with: Computers, Web-Phones, Chatting on the web-site, Skype and so on. Characteristic: More convenient for taking with foldaway design.