1.Driver Unit: 8mm
2.Impendance: 32ohm
3.Speaker Sensitivity:85dB +/- 3dB
4.Maximum Output Power : 20mw
5.Speaker Frequency Response: 20-20kHz
6.Cable length: 1.2m+/- 10%
7.Jack 3.5mm stereo. gold-plated;
Anodized whistle-shape metal ear buds/with mic