Cell Or Mobile Phone Mobile Signal jammer / Isolator / Shielder

Main functions:                                                                                                                     1, 4-channel type can efficiently provide shield for mobile signals from CDMA, GSM, DCS and PHS;
2, It Only shields the signals from mobile phone and does not affect the normal operation of other electronic devices;
3, Generally, please use your mobile phone at the places more than 200 meters away from the base station;
4, Switching on, it can work stably for a long time;
5, Slow start-up circuit can avoid sparkling caused by mechanical switch.
Technical parameters:
1, Effective isolating/shielding diameter: 100meters
2, Isolating signal bandwidth
CDMA: 870-880MHz    
GSM: 930-960 MHz
DCS: 1805-1850MHz    
PHS: 1900-1925 MHz
3, Working time: it can work stably for a long time
4, Environment temperature:  - 40 to +55
5, Relative humidity 30% -- 95%
6, Power adapterinput AC 160V 240V   output DC 5V
7, Size: 210mmW*100mmD*25mmH