EARPHONIC Headphones with VHF & UHF Frequency-Clear Sound & Comfortable Wear

Electrical Parameters of Speaker

Impedance

8Ω±1Ω

Resonance Frequency

350Hz ±20%

Intelligent degree

 111±5dB  At 1000 Hz At 0.179V;

Rated Power

Rated Power Input 100mW, Max Power Input 250mW;

Frequency scope

20HZ—20KHZ At 0.179 V

Ruzzes&Rattles

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

Distortion

Less Than 5% at 1500Hz

Polarity

Positive Electrode,When an instantaneous DC voltage of 0.2V is applied to the positive electrode, causing the voice coil to move forward, the input terminal connected to the positive electrode is the "+" pole

Flux Density

±15% Guass (Surface)

Air Tube Shell Diameter

Φ29mm±0.25mm;

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