1.Computer headset compatible for MP3/Mp4/CD/Computer/PMP,etc
2.Computer headset with volume control and Microphone
3.Precise, comfortable fit for long-term wear
4.Delivers smooth sound with enhanced bass
5.Angled nozzle for proper in-ear alignment
6.Durable, built-in strain relief

Driver Unit: Φ 40mm
Speaker Impedance: 32 ohm±15%
Speaker Sensitivity: 107dB±3dB
Speaker Frequency Response: 20-20，000Hz
Maximum Power Input: 50mw
Microphone Operating Voltage: 4.5V
Microphone impedance: 2.2K
Microphone sensitivity:-54dB±3dB
Microphone Frequency Response: 100-16，000Hz