1) Frequency Response: 20Hz-20 kHz

2) Speaker Impedance: 32Ω±15%

3) Speaker: diaphragm 6U, diameter 10mm

4) Output Power: 3mW

5) Sensitivity: 90-98dB

6) Cord Length: diameter 1.3mm, 2.0M

7) Jack: 3.5mm

8) Microphone: 4.5*2.2mm-42db+/-3db

9) PU、PVC、TPE green wire

10) Weight: 13g

11) Material: space environmental aluminum and natural bamboo

12) Application: MP3, MP 4, Cell phone, Computer, Game player