Model Number: HX-507-#1281 Key Specifications/Special Features: 1. Adjustable neck cycle allow for ideal fit2. Tactical heavy duty throat microphone cutting down and keep noise from outside environment3. Dual throat microphone provide highest quality transmit audio possible4. Transparent acoustic tube earphone provides privacy and discreet communication for any surveillance purposes5. Easy changeable acoustic tube6. Big round PTT and extra small finger PTTSpeaker:Speaker size: 12mmSound pressure level: 103dB±3dBImpedance: 32Ω±15%Audio output: 100mWMicrophone:Size: 9.7*5mmFrequency response: 20Hz-16kHz
Sensitivity: -40dB±2dB
Impedance: 2.2K Ω