Spy bug charger is suitable for listening to the environment. The gsm bug must be connected to a constant power supply. Long range of sound detection, works like a phone which automatically picks up the phone. The spy bug has a SIM card connector. You will enjoy unlimited listening to the environment whenever you want. All you have to do is dial the spy bug 's phone number to make a spy call. The internal battery is very small, so it can work only for a few hours on the battery.
- Mobile GSM network
- GSM frequency: 900/1800 MHz
- Does not work in USA, because it uses GSM network
- Range of microphone operation: 3–6 m
- Unlimited duration of operation
- Device operates as a charger
- Operates from constant power supply