Earphone:
1. Frequency response: 20Hz-20KHz.
2. Driv. unit: ∮15mm.
3. Sensitivity: 117+-3dB.
Microphone:
1. Frequency range 50-16kHz.
2. Sensitivity -58dB+-2dB.
3. Cable length: 1.2M / 1.8M / 2.5M.
4. Applications: MP3, CD, desk & laptop, PC and other audio devices.