Feature:
1. An effective guard against GPS satellite positioning tracking!
2. Effective interference with the GPS satellite signal your whereabouts to protect privacy.
3. only interfere with GPS satellite signals without affecting the normal phone answering.

4. Portable high-capacity built-in lithium batteries with electricity can be used for five hours.
5. Even if the vehicle does not start to use the same power source, this can be added Selvage (available on-board charger electricity).
6. Small size, power, light weight, a large coverage area, easy to carry

Specification:
Blocking Range: 10~15 meters radius
Battery: 3.6V/1550mAh
Current: 300 mA
Adaptor: 220V/5V (500 mA)
Weight: 180g
Packaging: Blank Brown Box
Frequency: 2400MHz_2500MHz