Product description Pt36 is one of the smallest gps trackers in the world. It has high quality and low price. It's waterproof ip67, so you don't need to worry about water damage in daily life. Pt36 has three mode positioning: gps+lbs+wifi, and the standard function is sos call. In short, it is a mini gps tracking device with strong functions. Functions: Three-mode positioning: gps+wifi+lbs Sos for call Voice monitoring Geofence History playback Magnetic charging Compatible android and ios systems Customization items Hardware: Appearance Material Color Software: Ios & android app Api Service: Maintain Patent & copyright Certificate Development Package: Logo printing Box/carton Label/sticker User's manual Accessory Gsm specifications Frequency900/1800 mhz, 850/1900 mhz Gsm antennabuilt-in Gprsclass 12, tcp/ip Gps specifications Gps chipsetmtk3333 Gps antennabuilt-in Positioning accuracy< 10 meter Tracking sensitivity-159dbm Ttff(open sky)cold start:2s Hot start:35s General specifications Dimensions3.8cm *3.8cm *1.3cm Weight30g Battery420mah Standby time96 hours Operating humidity5%~95% Operating temperature-20~ 60 Waterproofip67 Shipping information: Fob port:shenzhen lead time:2 - 5 days dimensions per unit:12.5 ã? 10.8 ã? 5.4 centimeters weight per unit:300 grams units per export carton:20 export carton dimensions l/w/h:31 ã? 27 ã? 24 centimeters export carton weight:4.5 kilogram