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Ear bone conduction loudspeaker

Item No.: FP-1
Description Specification
Ear Bone Conduction Loudspeaker
 
This is a headset that combines a ear bone conduction headset and a loudspeaker,  the microphone was inserted with rechargeable battery,  it  can be applied to chemical defense corps, firemen and security departments etc.
Compatible with various type of tactical helmets,gas masks etc.

Advantages:

* 360 degree rotatable clip: easy to clip on the collar or shoulder of users
* Talk freely under noisy environments up to 120 dB
* comfortable fit
*  Fire, water and dust resistant

Construction:

a. the ear bone conduction part
 it is made of medicinal grade silica gel, soft and comfortable, it's a ring shape    structure , can be closely attached to the back of the head.

b. Heavy duty coil cable
  The cable is a heavy duty coil cable and a  co-injection molded connector with  strain relief.
  Environment PU cable reinforced with Kevlar, robust design

c. compatibility
  compatible with various  walkie talkies.

 
1.Speaker Specification
Type Transducer Moving coil dynamic speaker
Impedance 32±15% Ω AT 1KHZ
Sensitivity 110dB±4dB AT 1KHZ 0.178V
Resonance Frequency 4KHZ±20%
Frequency respond 600Hz~ 4KHz
Rated input power 1W (Normal)
Maximum input power 0.5W
 
2.Microphone Specification
Type Ear bone mic
Impedance range -31±5dB RL=2.2K Ω Vs=2.0V(DC) 1KHZ 0dB=1V/Pa
Frequency 300-3.5KHz
Current Consumption Max 0.5uA RL=2.2KΩ Vs=2.0V(DC)
Operation Voltage Range 1.1-10V (DC)
Max Sound pressure Level 115dB At 1KHz THD<10%
Impedance Max 2.2KΩ 1kHz (RL=2.2KΩ)