Brand:FC radiation-proof headsets
MOQ:500
Quantity:100
The new generation of mobile phones terminal can not gowithout earphones, as we need both read pictures and listen tomusic and watch videos when we spend more time on mobile phones.More and more people include Woman,middle-aged man or oldpeople have realized the harm that the radiation of mobilephones can cause, so FC headset tubesare their best choice .
Specification All technical parameter can meet or exceednational standards
Electret condenser microphone
Offset
| 4.5VDC 2.2Kilohm
|
Sensitivity
| —42±3dBf=1KHz,spL=1Pa
|
Directivity
| omnidirectional
|
Staticimpedance
| 1—2.2 Kilohm
|
Peak voltage
| 10VDC
|
Distortion
| at 400Hz and1kHz lessthan5%
|
Speech to noiseratio
| More than58dB
|
2. Horn
Sensitivity
| 114±5Db SPL/3Mw/5cm at1KHz
|
Range offrequency
| 20Hz—20KHz
|
Resistance
| 32Ohm±15%
|
Rated power
| 3mW
|
Capacity
| 5mW
|
Lead wirelength
| 1-1.5m
|
FC Changjiang radiation-proof earphones
