This modern-designed perfectly working calculator* is one of the most popular audio listening devices on the market since it guarantees a high level of anonymity and a perfect performance in remote audio monitoring operations.Not by chance it can be it can be left on your desk at office or home to secretely listen to people without arousing suspicion. Since it is a normal calculator it can be put in your bag to use it – or to make people use it, if necessary.
It can be used for example for long-distance monitoring of your home, your office, your children etc. So if you are looking for a discreet and functional spy listening device, GSM-CALC is the one that fits you!
Easy to use and manage
The device use is absolutely elementary, thus no technical skills are required to use it autonomously. For instance, some functions can be activated or deactivated by sending a simple text message, or you can benefit from the useful “Call back” procedure – a vocal recall activated by sound.
“Call back” procedure can be set up on three levels and enables the device to enter stand-by mode until a sound is perceived in the surroundings. Thus optimised management and energy-saving are assured. Finally authorization to access to the audio of certain phone numbers assures a high security level.
Additional features of GSM-CALC
Perfectly functional digital calculator by batteries (1,5V, AA batteries) or micro solar panels.
Easy to set up: a simple SMS message will do.
Rechargeable internal Lithium battery.
Integrated power charger module.
*PLEASE NOTE: colour and model of calculator might vary according to warehouse availability.
Networks: GSM 900/1800/1900
Energy consumption: 20mA (in stand by mode), 200mA (while calling)
Voice detection: automatic call
Power supply: Lithium rechargeable 3.7V battery
Audio monitoring of minors, employees, co-workers etc.
Remote audio listening within enclosed places: rooms, offices, warehouses etc.