This product is a 10- IMU sensor, integrated with an ARM 32-bit processor, BLE 5.3 Bluetooth, high-precision accelerometer, gyroscope, magnetometer, and temperature & pressure sensor. Adopts self-developed attitude estimation algorithm, offering strong real-time performance and high precision, stable, and drift-free operation. Supports UART and BLE 5.3 Bluetooth communication to assist motion attitude and orientation detection of robot. Supports using with Bluetooth devices with for Android, for iOS, , and Linux systems. The printing/appearance from batch to batch, but it not affect the use; the actual product may have color difference due to different light or display. Colour:Black Material:PCB+Plastic Package Contents: 1 x 10- ROS IMU Sensor Modules 1 x housing 1 x connecting wire 1 x screwdriver(The screwdriver color is random, no specified color is accepted) 1 x screw bag(The screw color is random, no specified color is accepted) 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.