D-Shaped Ear Hook Single Earpiece mono Earphones

Specification:

Single sided earhook type earphone

Model No.: DT-802B

Plug: 3.5mm wired single pin stereo
Impedance: 16 ohms
Speaker: φ23mm 
Sensitivity: 100 ±3dB /mW at 1KHz
Frequency Range: 20 - 20,000Hz
Channel Balance: < 3dB
Distortion Rate: < 1%
Cable Length: 1M ± 10%( can customize)

Packing: Each earphone packed into sealed small plastic bag

100pcs per big plastic bag, 1000pcs per carton.