Speaker:

Dimension: ∮27mm

Impedance:  150 OHM

Sensitivity:  105dB+/-3dB at 1000HZ

Frequency Response:  20HZ-20KHZ

Rated Input Power:   30mW

Maximum Input Power:  50mW

Microphone:

Dimension: ∮6.0*5.0mm

Operating Voltage: 1.1-10V

Sensitivity:  -42dB+/-3dB at 1000HZ

Frequency Response:  30HZ-16KHZ

Pulg:RJ11/ ∮3.5mm

Cord Length: 1500mm

Certified with CE and RoHS