Key Specifications/Special Features:Allows you to make sure your loved ones are safety and securityVery easy to use, just need to send SMS to the SIM card of the GPS tracker then can get detailed location address within 1 to 2 seconds if the tracker with GPS signal or GSM cell signalor to access the location information via website through your mobileHidden and anti-theft, normal people just can think it is pet collar or hanging ornament, never thought there is GPS tracker insider and in workingWorking as long as 12 hours per charging, and the battery lasts for one week while in standby modeSet-up geofence to restrict the movement of your loved ones within a district with alertWhile the battery is low, send SMS alert to your cellphoneFeatures:Tracking via SMS or GPRS (TCP/UDP)Current location reportTracking by time intervalVoice surveillanceMovement alertSpeeding alarmReal-time pollingGeofence alarmLow battery alarmRemovable and rechargeable internal battery

GSM Module	GSM850/900/1800/1900MHz
GPS Chip	MTK-TSi Chip
GPS Sensitivity	-159dBm
GPS Centual	L1, 1575.42MHz
GPS Accuracy	5-25m
GSM Accuracy	100-500m
Speed Accuracy	0.1m/s
Time Accuracy	Same as GPS
Warm status	1S
Cold status	38S
Highest altitude	18000M
Max speed	515 M/S
Acceleration of Gravity	<4g

Temperature	-20---65°C
Humidity	5%---95%
Voltage	10V—25V
Power	10V—25V
Average Power	<80MA
LED	Indicate the working condition and other conditions of GPS & GSM