This portable cell phone & GPS jammer is design features an internal fan cooler and wind slots on each side, which helps cool down the heat when the jammer is working.This feature makes it be able to work 24 hours continuously without being damaged. It has a great output of power at 2.5 watts and can disable all types of cellular signals including the 3G and GPS signals within radius for up to 20 meters. It's great for schools, restaurants, conference rooms, museums, and vehicles.

It comes with a leather cover that offers a strong protection for the jammer. There's also a belt attached on the leather cover so you can take it anywhere you go.

Specifications
Technical Specifications
Output power: 2.5 watt
Maximum effective range: 20 meters
Antenna: External,Omnidirectional
Power suply: AC 110-240V, DC 12V
Working temparature: -15°C to +60°C
Working humidity: 5%-80%
Jamming System
Analog: NMT,TACS,AMPS
Digital: 3G,GSM,CDMA,DCS,PHS,PDC,PCS,TDMA,iDEN
GPS: GPS L1 1575.42 MHz

Jamming Frequencies (American Version)
850-960 MHz: GSM 850, GSM 900, CDMA, CDMA 800, iDEN, TDMA, AMPS
1805-1990 MHz: GSM, GSM1800, GSM 1900, CDMA 1900,PHS, PCS, NEXTEL
2110-2170 MHz: 3G, CDMA 2000, UMTS, WCDMA, T-SCDMA
1575.42 MHz: GPS L1
Jamming Frequencies (European Version)
925-960 MHz: GSM 900
1805-1880 MHz: DCS,GSM 1800
2110-2170 MHz: 3G, CDMA 2000, UMTS, WCDMA, T-SCDMA
1575.42 MHz: GPS L1
Physical Specifications
Product size: 113x65x30 mm
Product weight: 250 g
Package size: 208x153x85 mm
Package weight: 750 g
Battery
Type: Lithium-Ion
Capacity: 1800 mAh
Charging time: 3 hours
Working time: 1.5 hours
Package Contents
AC/DC adapter: 1 unit
Car adapter: 1 unit
Leather cover: 1 unit