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Portable Mobile Phone Signal and GPS Signal Jammer-CDMA/GSM/DCS/PHS/GPS Blocker, Shielding Range 1 Meters to 10 Meters

this product is easy to carry, built-in lithium battery, fully charge battery can work about 2 hours, with a car charger, and wall charger. 

Used to block mobile phone signals and GPS satellite signals, against location tracking, to protect your whereabouts, and information confidential. 

for Safe & Security Petroleum station, Government Building, Military Establishments, Prison, Car. 

for Public Places Church, court house, Library, Lectsure hall, Meeting room, Classroom, Test room, Recording studio.

Output	Block Frequency	Average Output Rate	Channel Output Frequency
CDMA	850-890MHz	33dBm	6dBm/30KHz (min)
GSM	925-960MHz	33dBm	5dBm/30KHz (min)
DCS	1805-1880MHz	33dBm	2dBm/30KHz (min)
3G	2110-2170MHz	33dBm	2dBm/30KHz (min)
GPS	1500-1600MHz	33dBm	2dBm/30KHz (min)

Effective range: 1~10 meters radius.