Light Duty Ear Muff Noise Reduction-Wired  Aviation Heaset with built-in PTT, Optional radio cable

Color: Black
Approx. Weight: 335g
Boom type: Universal Flexible
Plug: 5P Mini Chassis XLR Connector, Male
Ear Pads: Flexible inert foam
PTT Switch: 500,000 cycle rated

Speaker:
Size: Outer Diameter 50mm
Weight: 14.8 gram
Magnet: Materials Ferrite Size Φ20.5*4.5mm
Impendence: 32Ω At around 1KHz
Power Rating: Normal 30mW RMS, Maximum 100mW
Output Sound Pressure Level: 95±3dB /1mW /1cm With Artificial ear per channel
Resonance Fo: 100Hz
Frequency Range: 100Hz~3000Hz
Distortion: 5% Maximum at 1KHz /1mW /1cm
Volume Control: 2 32Ωpallel, VR=500Ω, If Input =100dB,
Volume range is 15dB~100dB.

Microphone:
Type: Noise Cancelling Condenser Mic.
Case Material: ABS Plastic
Sensitivity: -47±3dB (at L=50mm) (0dB=1V/Pa,1KHz)
Impendence: Low impedance 680Ω
Frequency: 300Hz~10KHz
Max.operation voltage: 10V
Standard operation voltage: 1.0V
Current consumption: Max. 0.5mA
Sensitivity reduction: Within -3dB at 1V
S/N ratio: More than 60dB

Noise Reduction Ear Muff for Two Way Radio