Installation and Use:

• Ensure that the antennas and other accessories of the blocker are correctly installed.

• Ensure that the mobile base station is over 200 meters away.

• The blocking effect depends on the surrounding environment; the cell phone interference effect in suburban areas is better than in cities, due to the higher density of base stations in urban areas and their closer proximity, resulting in stronger signals from urban base stations (the area where the blocker needs to interfere) compared to suburban areas.

• When using the blocker, there should be no metal objects or walls obstructing the antenna's signal transmission path.

• Strong magnetic fields and strong electromagnetic environments can affect the blocking effectiveness.

• Install the blocker at a height as close as possible to the level of the devices you wish to block.

• Prolonged use of the blocker can generate high heat, which may reduce the interference radius.

• It's more difficult for the blocker to shield signals when a phone is in a call (the signal strength during a call is very high).

• The radio waves emitted by the blocker are high-energy materials, and the gathering of high-energy materials leading to machine heating is a normal phenomenon.

• There is a certain lag in the refresh rate of the signal display on your phone; even if you've turned on the blocker, your phone might still show signal bars, but in reality, the phone will not function—please follow the actual effect.

• To test the functionality of a GPS blocker, download a GPS signal detection software to test the blocking effect, or activate your car navigation system for testing.

• A WIFI blocker with interference capabilities will also block other appliances with WIFI, such as wireless microphones, speakers, listening devices, etc.; use it with caution away from these wireless devices.