Dual Wire PTT Acoustic Tube Walkie Talkie Headset with Rotatable Earpiece

Electrical Parameters of Speaker

Impedance

200Ω~450Ω±20%

Resonance Frequency

350Hz ±20%

Intelligent degree

 116±3dB  At 1000 Hz At 0.179V;

Rated Power

Rated Power Input 10mW, Max Power Input 300mW;

Frequency scope

200Hz–6kHz

Ruzzes&Rattles

Clear sound, no noise At 0.25V(50HZ-3KHZ)

Distortion

Less Than 5% at 1500Hz

Air Tube Shell Diameter

Φ7.1mm±0.01mm;

Electrical Parameters of The microphone

Sensitivity

 -40dB≦S≦-36dB, At f=1kHz，S.P.L=1Pa，0dB=1V/Pa;

Output impedance

Zout=2.2KΩ,At f=1kHz

Current Consumption

 IDss(Max)=500µA, At Vs=2.0V,RL=2.2KΩ

Directivity

Omni directional

Signal to Noise Ratio

 S/N(Min)=55dB,At S:(f=1KHz.S.P.L=1Pa),N:(A-Weighted curve)

Decreasing Voltage

 (ΔS-VS)Max=-3dB,At Vs Reduces from 2.0 to 1.0

Operating voltage

 1≦V≦10;

Maximum input S.P.L

 110dB,At f=1kHz,THD＜1%

Brand

Connectors

Motorola

R7, M1, M2, M3, M4, M5, M6, M7, M8, M9, CLP, S1, DLR110

Hytera

M1, M4, M5, M6, H1, H2, H3, TC700

Kenwood

K1, K2, K3, K4

Speura

Speura

Icom

S1, S3, S6, S6-WP, S8, S9

Vertex

S1, Y1, Y4, Y5, Y6