Specification:
1 . Average working voltage: 2 V
2 . Sound pressure level: 86dB @1kHz
3 . Impedance: 8 ± 5 % Ohm
4 . Frequency: 150-20KHz
5 . Rated input(W): 0.5W
6 . Max input(W): 1 W
7. Size: 18.5*18.5*7.5H
Used for bone conduction headphone, bone conduction masks and other products