Are you SICK OF BEING TRACKED LIKE A CRIMINAL?HERE'S YOUR CHANCE TO have YOUR OWN PERSONAL portable GPS FOR ANY SURVEILLANCE OF YOUR WORK OR PERSONAL VEHICLE!It’s so easily to operate just switch on will immediately start to blocking any GPS tracking device signal in a 1 to 20 meters coverage area, You can now be invisible to all GPS devices watching you. So, you can go anywhere,do anything you want with freedom.( This device only block GPS Signal , can not block mobile phone signal…)

Working Band: L1 system 1450 to 1600Mhz

Coverage : 0.5M-----20M

Power supply: 5V

Currency: 550mA

Build in battery inside: 3.7V

Charge time: 3 hours

Work temperature: -30～60℃
  Relative humidity: 5～95％