Quad-band GSM emergency call service (850/900/1800/1900 MHz) which allows you to send calls and / or text messages with help request to a list of telephone numbers (max. 8) before pressing the button on a 433 MHz remote control stored.
The transmitter, to be worn around the neck with a necklace or string (string) of those for company passes or badges, allows the transmission of the alarm request even in large apartments, villas and e
