Built-in 800mAH battery capacity for extended usage without frequent recharging. Equipped with a 2.4GHz 3dBi antenna for reliable wireless communication. High-performance GPS module with a 20dBi antenna for accurate location tracking. 433M module with a 3dBi antenna for efficient long-range data transmission. 2.8-inch screen for clear and user-friendly interface display. This product combines advanced technology with practical features, making it ideal for various applications. The built-in battery ensures long-lasting performance, while the multiple antennas enhance connectivity and tracking capabilities. The 2.8-inch screen provides a clear interface for easy navigation and operation. Perfect for outdoor activities, remote monitoring, and more. Color: As Shown Material: Plastic+Metal Package Contents: 1*Expansion Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.