10~15m 5-Band GSM / CDMA / 3G Remote Controlled Cell Phone Signal Blocker White

Passive cooling (completely silent) 
Mobile phone signal jammer for completely stopping all of those pesky signals 
This is a perfect device for all those areas that require quietness and seriousness including meeting rooms, museums, theaters, churches, classrooms, and the device is designed to be placed either on a table top or inconspicuously on ceilings 
Works for 3G/GSM/CDMA 
CDMA: 870MHz~880MHz 
GSM: 930MHz~960MHz 
DCS: 1805MHz~1850MHz 
PHS: 1900MHz~1980MHz 
3G: 2110MHz-2170MHz 
Radius: 10-20 meters(The jamming Radius still depends on the strength signal in given area) 
Dimensions: 9.06 in x 3.94 in x 0.83 in 
Package Included:

1 x 10~20m 5-Band GSM/CDMA/3G Remote Controlled Cell Phone Signal Blocker 
1 x 100~240V Universal AC Adapter 
1 x Remote Controller Keychain 
1 x Triangular Mount Rack 
1 x Band Specific Digital Antennas

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FOB Price: US$100.00
Minimum Order: 5pcs
Port: ShenZhen
Payment Terms: Western Union/Money Gram/ T/T

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