Description: the received signal shielding device only shield gps terminal, for weeks in othermunication equipment and t anssmission without any negative impact and interfere nee. This machine cover is in the range of 1-15meters (depending on the strength of the satellite signal ) within the scope of a postioning terminal gps positing teminal contact with the outsidepletely inter rupted. 1. The surface of the two international most advanced oxidation process2.1-15 meter can effectively shield the distance adjustment3. Low power consumption, damage to human bidy and enveronment protretion4. Articles for easy concealment, small volume, light weightfeature: color: blacksize: 95x45x18mm/3.7inchx1.8inchx0.7 inchcharge power supply: ac110-250vbuilt-in battery: dc5v 1500mahpower consumption: 0.4/heffective distance: 1-15minstructions for use: 1. Open the gps device, install the corresponding abtenna. 2. When the device is the indicator light is on, the normal work. 3. Insert the car cigarette lighter power supply. 4. Thees with a battery, working time: 1-15 hours (depending on the battery charging condition)5. Please give the host fully charged before use. Fully charge indicator light goes out automatically exhibit to ensure the effect of host work. 6. After use, the shutdown can be. Packaged included: 1 x gps signal jammer (3g/4g, click here)3 x antenna1 x car cigarette lighter1 x ac/dc adaptor1 x charging cable1 x user manual
