Welcome to our shop! Here is the detailed description of the product: Item Type: Magnetic GPS Locator Material: ABS Color: Black Talk Time: 150-180 minutes Standby Time: 12 days Working time: 4-6 days Expansion Card: Mini memory card (not included) Networks: GSM/GPRS GSM Frequency Band: 850/900/1800/1900Mhz GMS Positioning Time: 25 Seconds Power Input: AC 110-220V 50/60Hz Power Output: DC5V 300-500mA Battery: 3.7V 400mAh Lithium Ion Battery (included) Working Voltage: 3.4-4.2V DC Storage Temperature: -40 To 85 Degrees Celsius Working Temperature: -20 To 55 Degrees Celsius Humidity: 5%-95% Non-Condensing Size: Approx. 2.5 x 4.1 x 1.7cm/1 x 1.6 x 0.6in Description: - There are two powerful magnets inside, which can be easily attached to the vehicle without additional installation. - The black shell is easy to hide, perfect for tracking vehicles, teenagers, spouses, seniors, or property. - Made of high-quality ABS material, rugged and durable, light-weight, compact size, easy to carry. - Simply insert a SIM card (not included) into the device to track and map (for Google Maps) in real-time via the Internet. - Dial the SIM card number, and you can hear the sound around the locator in the absence of light and noise, and you can monitor the situation around the locator silently. Package Includes: 1 x Magnetic GPS Locator 1 x USB Charging Cable 1 x English Manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.