Use high-quality PC to high receiving sensitivity. Miniaturized design, MRF8CHA uses tiny components, the overall size is smaller, suitable for ultra-small aircraft. Serial signal S-BUS/(8CH) output, directly connected to the flight control system, specially designed for miniature aircraft such as ride-through aircraft. The remote control system has two-way communication, which can display real-time change data such as the voltage and received signal of the receiver on the remote control end. Model:MRF8CHA Working voltage:4.8V-8.4V Size:20x12x5mm () (without antenna) Weight:1.8g () Output channel:S-BUS (8CH) Receiving antenna:single antenna Communication data:two-way communication Compatible system: Compatible with for OPEN TX D8 remote control system. Suitable for X9D, X9DP, XJT and other remote controls that support D8 format Code description: 1. Open the remote control and select MENU and enter the MODEL SETUP (system) menu, move the cursor to select D8 mode And start the BIND function. 2. Press and hold the SW button of the receiver first and then power on. The red light of the receiver is on and then goes out to indicate the completion of the linking. 3. The remote control exits the BIND function, and the red light is on after the receiver is powered on again, it means the linking is successful. 4. If the linking fails, please repeat the above steps. Due to different product batches, the appearance , which does not affect the use. Colour:As Shown Material:PC Package Contents: 1 * Receiver Module 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.