... for children, elderly, disabled and pets; Protection for businessmen; Management for staff outside; Tracking for outdoor machines; Prevention against criminals.Key Features: SiRF StarIII GPS chipsets ... 4.2 – 5.5V, 400mADimension78×48×20mmN.W.60g mini GPS tracker for pet, small, waterproof, long standby, sos, alarm, voice monitor ...