1.reduce cell phone radiation by 99% 2.patented in china, Germany,PCT certificate 3.air tube technology, delicate appearance
The new generation of mobile phones terminal can not go without earphones, as we need both read pictures and listen to music and watch videos when we spend more time on mobile phones. More and more people have realized the harm that the radiation of mobile phones can cause, so FC changjiang radiation-proof earphones are our best solution to them.
Electret condenser microphone
Offset | 4.5VDC 2.2Kilohm
|
Sensitivity | —42±3dB f=1KHz,spL=1Pa
|
Directivity | omni directional
|
Static impedance | 1—2.2 Kilohm
|
Peak voltage | 10VDC
|
Distortion | at 400Hz and1kHz less than5%
|
Speech to noise ratio | More than 58dB |
2. Horn
Sensitivity
| 114±5Db SPL/3Mw/5cm at 1KHz
|
Range of frequency
| 20Hz—20KHz
|
Resistance
| 32Ohm±15%
|
Rated power
| 3mW
|
Capacity
| 5mW
|
Lead wire length
| 1-1.5m
|
Comparison with phones with no earphones
Data above shows that FC radiation proof earphones can reduce radiation by 2640 times!
Comparison with common and Bluetooth earphones
Data above shows that FC radiation proof earphones are 52.5 times less radiant than common ones and 16.5 times less than Bluetooth.
Specifications above can be made as customers require.Specification All technical parameter can meet or exceed national standards
Patent Number granted by Germany: 20 2006 011 911.6, Patent Number of invention in China: ZL 2005 20042628.4PCT International Publication No.: WO 2010/043097A1
Radiation free headsets +Any phones=safe phones
Package (For reference, can be packed as required.) One unit in a poly bag.200pc/carton (440*240*310mm)Carton weight: 0.15gGross weight: about 4kgNet weight: about 3.5kg
Current Customers: Konka (www.konka.com),Gioneehttp://www.gionee.net/Yi-phone (www.yi-phone.com/cn),Chiva( www.chiva.cn)
FC radiation free headsets news:http://www.china.org.cn/environment/2010-08/02/content_20622993_3.htm
FC Changjiang radiation-proof earphones
