Feature：
1. The metal structure design shows the texture;
2. The gold-plating plug can effectively reduce the situation of bad contact;
3. The wires of high quality ensure lossless voice;
4. The speakers of high quality present perfect sound;
5. Three sets of in-ear earmuffs-–large, medium, small size—are provided for your suitability.
Speaker Dimension: Ф10mm
Impedance: 32Ω
Sensitivity: 103dB S.P.L.at 1KHz
Frequency Response:20Hz-20,000Hz
Rated Power:3mW  
Power Capability:30mW 
Cable Length: 1.2±0.15M
Plug Type: Ф3.5 Stereo