Feature: 1.Portable car GPS tracker GPRS locator tracking system 2.Real-time positioning 3.Track playback 4.Vibration alarm 5.Move the alarm 6.Mileage statistics 7.9-100V wide voltage (suitable for all models) 8.Electronic fence (can set up multiple electronic fence) 9.Power off alarm 10.Built-in sensor accelerator 11.Location inquiry by SMS / GPRS Specification: Model Name: GT23 Material Type: Plastic GPS bands: GSM 850 / 900 / 1800 / 1900 Quad band GPS sensitivity: -159dBm Position accuracy: 5-10m Mileage report: Tracked by time / distance interval Network: GSM / GPRS Working voltage: 9-100V Input Storage temperature: -40 +75 Operating temperature: -20 +55 Size: 76 * 27 * 15mm Package Included: 1 X Car GPS WIFI Locator Tracker 1 X Relay Set 1 X Cable 1 X Sticker 1 X User Manual