This GSM/GPRS+GPS jammer is very easy to use. It doesn't require any technical knowledge from you, just press one button OFF/ON.
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This Portable 3 Antennas GSM+GPS Signal Jammer can be used to block both cellular GSM(GPRS) and GPS signals used by A-GPS tracking devices, providing you a more pleasing environment with adequate privacy. By blocking GPS trackers and navigators' data transmission, this jammer can cut off these devices' access to satellites.
Jamming Radius: 1~5 Meters
Power Supply: built-in battery or power adapter
Blocking Power: 57dbm
Strength of Current: 900mA
Antennas Info: built-in 3 x SMA 3dbm antennas
Battery: Li-ion 3.7V 1300mAh, 2 hours of work, 2.5 hours of recharge
Supplied Adapters: AC 110~250V 5VDC, car charger 12~24V 5VDC, each 2000mA
Weight: 68g/350g (device/package)
Allowed Temperatures: 0C ~ 50C
Allowed Humidity: 5% to 80%