Driver Unit: Φ10mm
Impedance: 16ohms
Sensitivity: 104±2dB S.P.L. at 1KHz
Frequency Response: 20Hz-20,000Hz
Max. Input Power: 10mW
Cord Length: 1250±50mm
Plug Type: 3.5mm Stereo Gold-plated

In-ear headphone, light weight MP3 earphone, with good quality and competitive price