The Portable Car GPS Signal Jammer is very easy to operate .just plug it directly into car cigarette lighter device with 12V for power, the GPS Jammer will automatically protect you by blocking any GPS tracking on and within your vehicle. The Isolating radius is up to 10Meters.
This GPS tracking jamer is a popular item with sales personnel and delivery drivers, who wish to take lunch or make a personal stop outside of their territory or route "off the radar
Cover Interface:GPS L1
Isolating range:GPS L1 1575.42Mhz
Antennas: External ,Ominidirectional
Power Supply: Car Cigarette lighter
Effective range: Radius 2-10 Meters,depanding on the strength of the signal