The PHX-BLOC-CELL 3000 sends out small power signals of specific frequencies to interfere with the identification of cellular phones so that no communication links between the cell phones and radio base stations will be established.

In AMPS, N-AMPS, D-AMPS, TDMA, CDMA, GSM, the PHX-BLOC CELL 3000 transmits between 824-894 MHz. and 1850-1990 MHz, emitting a signal of less than 500 mW.

The effective jamming rage for the PHX-BLOC-CELL 3000 is approximately 20 meters. The effective coverage area may vary depending on the installation location and position. For better performance and larger coverage area we recommend that you install more than one unit.

The PHX-BLOC-CELL 3000 is completely safe. There are no health risks associated with its use. Its emission is less than a normal cell phone’s.