Jammers Product Description 
Cover interface standards:
CDMA800:850-894 MHz,
GSM900:925-960 MHz
GSM1800-1900:1805-1990MHz,
3G: 2110-2170MHz,
GPS: L1, L2
WIFI: 2400-2500 MHz
CDMA450 (just for Europe customer)
You can select four of above frequency bands in a jammer

Jamming range: Radius 300~600M [the signal strength<=-75dBm in the location]The jamming Radius still depends on the strength signal in given area
Every band frequency can select output power 
Power supply: 50.60Hz/AC100 ~ 240V transmitting to DC 28V.

The 101G-M-A1.0  was developed specially for prisons and other large sensitive locations such as military or governmental compounds. This high power system has been approved and installed by Prison Authorities in very large prison facilities in several Countries world wide. 

System Advantages 
• Each unit can jam up to five frequency bands simultaneously. 
• Continuous operation, even in hot climates, with no time limit. 
• Secure design to avoid sabotage. 
• (VSWR) circuit protection to ensure system will not burn out should there be antenna short circuiting or disconnection 
• Adjustable RF power output level. 
• Antenna type options 

101M-A1.0 Optional Features 
• Selection of antennas to provide more flexibility regarding jamming coverage. 
Special additional housing for all weather protection. 
• Can use the UPS and battery