Features: Base on Chip RK3506G2 chip, provide developers with a simple and efficient development platform. This product supports including MIPI RMII and USB, which can meet a variety of application scenario. The low-speed interfaces adopts Chip design, which enables the pin supporting this design to share 98 multiplexing functions, and can freely combine UART, I2C and I2S, which is convenient for rapid development and debugging. ARM 32bit cores with integrated VFP, supporting single-precision and double-precision floating-point operations. Support for multiple sound input and output, and provide sound playback and recording functions Specifications: Component:Plastic Type:Not Welded/Welded Size:Approx.72mm/2.83inch Package Includes: 1Pc Development Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.