100% brand new and high quality Portable and durable, easy to carry, lightweight Mini portable, clear voice, long standby duration, simple operation, stable performance, easy installation. GPS tracker is designed for advanced tracking/monitoring specifically for vehicle tracking using GPS, GSM and GPRS technology. The GPS tracker is designed for use in any vehicle to track their location, such as caravans, boats, motor homes, trucks, vans and construction machinery and many more - live tracking possibilities are limitless. This is particularly useful if your vehicle, pets, child or your belongings have been stolen. Time to enjoy the benefits this GPS tracker brings! Operation: -Your surveillance operation will be underway in simple steps: -Insert a mobile phone SIM card in the device -Conceal the device where it cant be seen. -Dial the pay as you go number from your phone. -Listen - now you can hear what they are really talking about. Power on: open the back cover, put the SIM card into the seats, then it is automatically power on. When booting, indicator will light for 10 seconds, after the indicator is off, cover the back cover then it can be used. Environmental monitoring: starting up normally, dial alarm number, it will be easy to hear the situation within 10 meters around the machine after waiting for five seconds. Sound control dialing: use mobile phones or fixed-line to get through SIM card number in the alarm, hang up the machine when hearing the sound of the machine about 3 seconds, and that means it sets up successfully. When there is a sound above 45 db within 10 meters around the alarm, the call will be automatically make call number which you set before. - Send 0000 SMS to turn off sound control function. - Send 1111 SMS to turn on sound control function. LBS positioning: please directly edit capital lettersDW SMS to the alarm in China,and on aboard please edit capital letters GPSto the ]alarm,The alarm will revert a message including the information about addresses/longitude and latitude/web site content in a minute. SOS Emergency call: Edit the content of messages capital lettersSOSto alarm, directly press the key SOS above three seconds after the success of seting, the alarm will directly call the seting number. And the indicator will flash. Specifications: Color: Black Connection: GSM/GPRS GSM Frequency: 850/900/1800/1900Mhz Battery: Chargeable 3.7V 500mAh Li-ion battery (included) Standby time: When using sound control, Standby 5 to 7 days When not using sound control, Standby 12 to 15 days. Storage temperature: -40 to +85