Gsm Mobile Phone Interceptor

This device can intercept and monitor 800/900MHz phone in any country within range of 90miles or 144km of target phone regardless of the brand of the phone.
That means the distance from the interceptor to the target phone should be no more than 90miles or 144km however, there is no range limit to the other phone that the target phone is having conversation with.
The device passively catches the signal off the air. No one will be able to detect that you are monitoring their conversations.
You may intercept and monitor remotely, discreetly (complete stealth) to the target phone and the network.
No software needs to be installed on the target phone. No SIM card or joining of any networks is required to operate the device.
You will be able to target specific phone numbers to intercept.
You will be able to store up to 20 cell phone numbers and will be able to intercept those cell phone conversations (one conversation at a time).
Features
Single number monitoring
Simply key in one phone number, press the function key and a 2 digit code. The unit will be on interception standby; once a conversation is engaged the device starts intercept.
Multiple number monitoring
Phone numbers can be stored in registers 80 to 99