Main Feature: Four Bands Handheld Cell Phone and GPS Signal Jammer withSingle-Band Control (For Worldwide all Networks),Each band can work separately or simultaneously.
Isolating SignalBandwidth:
- GSM900: 925-960Mhz
- GSM1800: 1805-1880Mhz
- CDMA800:850-960Mhz
- DCS PHS: 1805-1990Mhz
- 3G: 2110-2170MHz
- GPS L1:1500~1600Mhz
Antenna: 4 x Omni-directional Antennas
Shielding RadiusRange: up to 15 Meters (depending on the mobile service provider's networkcondition and background signal strength)
Power Source: Wall plug, caradapter, or built-in battery
Built-in Battery:1800mA/h
Built-in batterytime: 90 minutes
Total output Power: 2 watt
Operating Temperature: -10 to+50 Celsius
Power supply: 100-240V, 12V
Device Size: 113*60*31mm    
Package Size: 209*52*86mm
Color: Golden
System: Nextel, AMPS, TACS,NMT, GSM, DCS, CDMA, PDC, TDMA, PHS, IDEN,3G, UMTS,GPSL1
Suitable for: Policeand Meeting Room, Security Services, Military Units,Prisons, Banks, Churches,Conference Rooms, Classrooms, Secret Services, News Conference Rooms, Libraries,Museums, Customs, Houses.

Feature andAdvantage:
Charging while working.
Each band can work separately orsimultaneously.
Wind slots on two sidesand inside coolers make a constant cooling working.

Use Notes:
Be sureto connect all the antennae before the power supply is switch on.
When youget the device in the first time,recharge the device only after the power isused out.To prolong the lifespan of the device, try to recharge it no less than12 Hours.
Any sealed mark on the machine teared are void, excluding from therepaired service.
Don't put the jammer in the water and fire to avoid usingin the bad, Condition of over-wet, over-hot, high voltage and highmagnetism.
Antenna shall be used vertical to the ground, working moreefficiently.

Accessories:
ACPower Charger (we will send correct standard power charger which accordingcustomer's shipping address)
Car charger
Detachable Antenna x4
LeatherCase
Carrying Strap