High Powered Portable Cell Phone Signal Jammer

Specifications:
Main function: Shielding cell phone signal within security radius
Isolating Signal Bandwidth:

Type A:
GSM900: 925-960 MHz
GSM1800: 1805-1880 MHz
3G: 2110-2170 MHz

Type B:
CDMA GSM: 850-960 MHz
DCS PHS: 1805-1990 MHz
3G: 2110-2170MHz 
Coverage Area: up to 25 meters which depending on the mobile service provider's network
condition
Power Source: Wall plug, car adapter, or built-in battery
Power supply: AC220V-DC5V
Total output Power: 2.7-3 Watt
Internal Battery: 2000mAh rechargeable li-ion
Typical Battery Life: 120 minutes

Dimensions:
Antennas off = 112mm x 60mm x 30mm (L x W x D)
Antennas on = 195mm x 60mm x 30mm (L x W x D)

Other Features:
Compact size - only slightly bigger than a standard IPOD (antennas off)
Can be run on AC power or battery power
Electrical power and recharging from AC charger (110/220V)

Accessories:
1 x English User Manual (If you need, we will send the scan file via email, it will avoid some possible custom issue)
1xAC Power Charger
1xCar power charger