1.gps kid locator 2. mini in size 3. SOS alarm for emergency 4. listen in ... /1800MHz module; Internal antennas; Compact size; Track by SMS or GPRS; Track by interval or on demand; SOS alarm; Low power ... SupplyDC 4.2 – 5.5V, 400mADimension78×48×20mmN.W.60g mini GPS tracker for pet, small, waterproof, long standby, sos, alarm, voice ...