Locate your child with the push of a button long life batteries already installed and ready for immediate use
Water and shock resistant
Special two pack for more than one child batteries included and ready to use form the packaging
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.
Sound control dialing: use mobile phones or fixed-line to get through SIM card number in the alarm, hang up the machine when hearing the sound of the machine about 3 seconds, and that means it sets up successfully. When there is a sound above 45 db within 10 miters around the alarm, the call will be automatically make call number which you set before.
Send 0000 SMS to turn off sound control function. Send 1111 SMS to turn on sound control function.