This advanced GPS Tracker Blocker & Cell Phone Jammer / Mobile Phone Jammer & GPS Tracker Jammer utilizes intelligent technique that interferes with the GPS tracker to link with base station or to receive location data from GPS satellites, by low output power radio signals.

This GPS Tracker Blocker & Mobile Phone Jammer / GPS Tracker Jammer & Cell Phone Jammer is qualified to ensure fully blocking the GPS tracker and its Cell phone module outside the car through thick steel car body, or the units installed in the bus or truck further from the driver seat.

Specifications:

Size: L 150 x W 49 x T 24 mm
Input Power: Car power supply through cigar plug.
Input Power: 4.8V DC rechargeable battery pack. 

Jamming band:
Cell Phone Band: 806 - 894 MHz, 1850 - 1990 MHz,

GPS Band: L1.

Jamming distance:
Cell phone: Up to 25 meters radius, depending on the signal strength and location
GPS: Up to 10 meters radius, depending on the signal strength and location

Features:

Low output power will not cause harm to human body or medical equipment.
Just in mobile phone size available for any place, without others' awareness. 
Use standard battery pack and battery charger.

Standard package including:

1. GPS jammer x 1

2. Battery pack x 2

3. Battery charger x 1

4. 66PMDT-CA x 1 (Car Power Supply 5V 1.5A + Direct Power Pack)

5. Power adaptor x 1

6. Acrylic holder x 1

Note: Each GPS satellite transmits two carrier signals in the microwave range, designated as L1 and L2. Civil GPS receivers use the L1 frequency with 1575.42 MHz. The L1 frequency carries the navigation data as well as the SPS code (standard positioning code). The L2 frequency (1227.60 MHz) only carries the P code and is only used by receivers which are designed for PPS (precision positioning code). L2 band is used for in military receivers. This GPS disable is using L1 bands only!