Features: Multiple ways to implement targeting: free monitoring queries, globally used, computer and APP queries. Small in size, with integrated design (built-in antenna and battery), it is easy to conceal and carry. Support positioning without location server: can query real-time latitude/ longitude/ time/ speeds, call and hang up to automatically enter positioning information. If the device enters an underground parking lot or other GPS blind spot, it will report to you the location information of the last location of the device. With authorized number plus/delete, check the surrounding sound, and sound function. It can also enter the intelligent power saving mode. Electronic fence, shift alarm, overspeed alarm, low power alarm, and vibration alarm function(optional). Added GPX function, you can also watch the trajectory of GPS locator without SIM card. Single positioning, click on the APP to locate, and enter standby power saving to cancel positioning. Inserting the mobile phone card, the device will go online automatically, even placed outdoors. Simple to use with free installation, not any settings required. Can see the historical trajectory of three months. It can also be adsorbed on metal such as car boat or container for real-time positioning. Specification: Color: Black Material: ABS plastic Network: GSM/GPRS Network band: 850/900/1800/1900Mhz GPS sensitivity: -159dBm GPS accuracy: 5m First starting time: Cold status 45s, Warm status 35s, Hot status 1s Car charging pressure: 12-24V (input), 5V (output) Handheld charging voltage: 110-220V (input), 5V (output) Battery: Chargeable 3.7V 800mAh Li-ion battery Standby time: 24hours GPS chip: For UBLOX chip Number of channels: parallel 20 channels Positioning time: cold start / hot start time 35 / 1 second Storage temperature: -40 ° C - +85 ° C Working temperature: -20°C - +55°C Humidity: 5%~95% (non-condensing) Package List: 1 x GPS Locator 1 x Instruction Manual 1 x Data Cable 1 x Thimble 1 x Adhesive Paste 1 x Magnet Note: 1.GPS signals are only available outdoors, to use GPS positioning. 2.Confirm the mobile phone card, to have calls, SMS, GPRS Internet access. 3.Confirm that there is sufficient balance. 4.Confirm that Caller ID is turned on and Call Transfer is turned off. 5.For the first time, please charge for more than 6 hours. 6. the GSM phone card correctly. 7.Do not disassemble the device. 8.Please use the factory-configured USB cable and charger. 9.Time sleep is a single positioning mode, and vibration sleep and shutdown sleep are continuous positioning modes.