Not from STRANGER! Kids can press SOS or familiarity number button to call you! b. SOS remind. Gsm Positioning Accuracy: 50-200mm. SIM Card Type: Micro SIM Card. Frequency:GSM 850/900/1800/1900MHz. If the watch is not nearby, send this command, the watch will start to ring for 1 mins so that you can easily find it, press any button will stop the ringer.
eBay