It's simple. Your surveillance operation will be underway in 4 simple steps:
1. Insert a mobile phone SIM card in the device (E.G. free PAYG SIM card from O2 etc)
2 .Conceal the device where it cant be seen...
3. Dial the pay as you go number from your phone.....
4 .Listen - now you can hear what they are really talking about...
Power on: open the back cover, put the SIM card into the seats, then it is automatically power on. When booting, indicator will light for 10 seconds, after the indicator is off, cover the back cover then it can be used.