Features: Experience stable communication with the JDY23 Bluetooth-compatible module, for efficient data transmission. Connect and operate with ease usings this user friendly module, perfect for embeddeds system. Suitable for developers and enthusiasts lookings to implement serials communication in their projects. Explore a wide applications, from industrial data transfer to transducer data collect. Elevates your projects with the JDY23 module, ensuring stable wireless communication for various needs. Supports Bluetooth-compatible serials port transmission, facilitating serials communication between STM32 microcontroller and other devices, providing stable data transmission. Specifications: Material:PCB Model:JDY23 Working Frequency:2.4GHZ Support AT Command,Supports Uart Interfaces Operate Distance:60m/196.85ft; for STM32; Option Type:Bluetooth-compatible Module,Bluetooth-compatible Low-power Consumption Module Builts in PCBAntenna Package Includes: 1pc Bluetooth-compatible Module note: Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color.