DCF-k73-333-PJ
Specifications:
Speaker Size:	φ10
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:	18g
Cord Length:	1.2metres
Jack Type:	φ2.5mm plug
It is compatible with: General Mobile phones. Characteristic: In-ear type earphone-housing, with big, middle ,small size(any color you want) rubber ring.