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Covert Portable 3G cell phone jammers

model number 8257


Covert Portable 3G cell phone jammers


This product carry convenience, built-in lithium electricity, imitation full a electric can work for two hours or so, with car charger and straight imitation, used for shielding mobile phone signal and prevent GPS satellite signal location tracking, protect your whereabouts secret and confidential information

Detailed Product Description

Technology index


Output port Frequency Average out-putting power Channel out-putting power
CDMA/GSM 850-960MHz 25dBm 3dBm/30KHz(min)
DCS/PHS 1805-1990MHz 25dBm 3dBm/30KHz(min)
3G   2100-2200MHZ 25dBm 3dBm/30KHz(min)
Available system: world wide cell phone network

Power supply: AC adapter   (AC110V-240V  DC5V)

Operate time: 2hours

Semidiameter of interception:1-5 m(-75dBm)

Antenna: 3pcs ( Please fix the antenna follow the mark in the unit)

Packing: neutral packing; Logo can be printed per customer’s requirement based on quantity.

Power consume:400mW

Gross Weight after Packaging :0.35KG

Package Size: 195(L)*135(W)*57(H)mm

Dimension of the Main Part:  95 (L)×45(W)×18(H)mm



1 :This product can be used in any place where mobile phones and Gps L1are

2: small place which need special security

3:the personal office,  conference room

4 :the vehicle,  or other special place which need special protect

5:conference room of government or company

6:for personal or business requirements


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