Features: 1. Long lifespan: Built-in 3.7V 400mAh lithium-ion battery, long service life. 2. Compact and small size: Lightweight, very easy to carry. 3. Durable black shell: Easy to conceal, suitable for tracking vehicles, personal belongings, or assets. 4. Very convenient: Requires a working SIM card (NOT included) inserted into the device to enable real-time tracking and mapping via Google Maps over the Internet. 5. Easy to install: Equipped with two powerful magnets, securely attaches to vehicles without additional installation tools. 6. Safe and discreet: Allows voice monitoring by calling the SIM card number, operating silently without lights or noise. 7. Wide application range: Designed for use with cars, motorcycles, and trucks. Specification: Condition: Material: ABS Color: Black Battery Capacity: 3.7V 400mAh lithium-ion battery Working Voltage: 3.4 - 4.2V DC Length: 4.2cm / 1.6in Width: 2.3cm / 0.9in Height: 1.4cm / 0.6in Quantity: 1 piece Package Weight: Approx. 92g / 3.2oz Application: For cars, motorcycles, trucks Package Included: 1 x GPS Tracker 1 x Charging Cable 1 x User Manual