Fangrui Product Details 1. Ultra-long Communication Distance 15km, Constant Rf Power Output When Voltage Changes From +20dbm-100mw 2. High Sensitivity: -148dbm, Half-duplex Spi Communication 3. Programmable Bit Rate Up To 300kbps, Supports , Gfsk, Msk, Gmsk, Lora And Ook Modulation Methods, 127db Rssi Dynamic Range 4. Automatic Rf Signal Detection, Cad Mode And High-speed Afc, Packet Engine With , Up To 256 Bytes, Small Size Dual-column Stamp Hole Patch Package 5. With Shielded Shell, Spring Antenna (ra-01) Or External Antenna (ra-02) Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Specifications: Ra-02 Development Board (soldering Pins) Product Type: With Base Plate Communication Interface: Uart Power Supply Voltage: 3.3v Power Supply Current: 0.2a Colour:as Shown Material:pcb Package Contents: 1x Ra-02 Development Board Module (soldering Pins) Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays M