Welcome to the store! Waterproof GPS tracker, mini size for easy concealment. Supports 9v - 50v, ACC detection (ACC alarm). Simple Installation - Minimal wiring required for setup. Geo-fence alarm & Overspeed alarm. For Vehicles/Motorcycles/Scooters, 2G VERSION GSM 850/900/1800/1900Mhz. Built-in high-sensitivity GPS & GSM antenna, GPS/GPRS/GSM/SMS Positioning and Tracking. SMS tracking on mobile phone with map link. -901 Without Battery: No built-in battery for backup if disconnected from the vehicle or motorcycle battery. No main power cut alarm (main power cut alarm means an SMS alert is sent when the GPS tracker is disconnected from the vehicle battery). -901 Item Function: Color: Black. Material: ABS. Type: B: Without Built-in Battery. Package Contents: 1x Car GPS Tracker. 1x English User Manual. (Only the above package content is included; other products are not.) Note: Light reflections and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage or incorrect quantity, please contact us immediately for the best solution!