Communication: standard IIC communication protocol Internal structure: this module uses the MPU-9250, and combines a 3-axis gyroscope, a 3-axis accelerometer and a 3-axis magnetometer which are integrated into a single QFN package Reliable chip: the MPU-9250 integrates a 3-axis magnetometer AK8963; The 16-bit AD converter is embedded in the chip, with 16-bit data output The 9-axis sensor module features the immersion gold PCB, which uses the machine welding process to work fine DTV and set-top boxes are applied to internet connection; Wearable sensors are applied to fitness equipment and sports Power supply: 3-5V (internal low dropout voltage regulator) Module model: -9250 Chip: MPU-9250 Module size: . 15 x 25 mm Pin spacing: . 2.54 mm Material:PCB colour:blue Package Contents: 2 * Gyroscope acceleration magnetic sensors Only the above package content, other products are not included. Note: Light 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.