Feature:
. High powered portable signal jammer

. Blocks cell phones (GSM, CDMA, DCS, PHS), WiFi signals, and GPS signals

. Highly portable design

. 20 meter jamming radius

. Anti-tracking, Anti-positioning. personal security device for meeting room, office,Special places.. etc.

. No setup necessary; turn it on for immediate jamming

Specification:
. Isolating Signal Bandwidth:
  - GPS: 1500~1600Mhz
  - CDMA & GSM: 850-960Mhz
  - DCS (PHS)/CDMA1900: 1805-1990MHZ
  - WiFi: 2400-2500MHz

. Antenna: 4x Omni-directional Antennas

. Coverage Area: Up to 20 meters

. Power Source : Wall plug, car adapter, or built-in battery

. Internal Battery: 1600mAh rechargeable li-ion

. Typical Battery Life: 2-3 hours of continuous use

. Total output Power: Up to 3W

. Operating Temperature: -10 to +50 Celsius

. Operating Humidity: 5% to 80%

. Power supply: 100-240v, 12v

. Dimensions:
  - Antennas off = 120mm x 62mm x 34mm (L x W x D)
  - Antennas on = 190mm x 62mm x 34mm (L x W x D)

Paceage including:
1 * Jammer

1 * Charger

1 * Car charger

1 * leather case

1 * user manual

Most important caution as follow: please strictly abide by and follow relevant state laws and refrain from illegal use it.