Features: ES900TX ES900RX RF Module Set: This product is a set of 915MHz ELRS RF module receiver sets, providing reliable signal transmission and control for remote-controlled aircraft and FPV remote drones. Remote Drones DIY Parts: Suitable for DIY enthusiasts, this set can be used as key accessory for assembling remote-controlled aircraft or FPV drones. High Performances RF Module: Adopting 915MHz ELRS RF technology, it has stable signal transmission and long-distance remote control capabilities, providing a reliable remote control experience in complex environments. Package Design: includes two parts: ES900TX transmitter and ES900RX receiver, which are compatible for users to install and connect. It also supports multiple hardware and software configurations. Strong Scalability: Supports compatibility with other devices and sensors, such as global positioning system navigation system, telemetries modules, etc., to meet the needs of different users for drones functionality. Specifications: Material: PCB+Plastic Type: ES900RX 915, ES900TX 915 and ES900RX 915, ES900TX 915 (optional) ES900RX receiver: Power input: 5V Working current:~100Ma Work Agreement: CSRF Receiving frequency ranges: 915MHz Size: 12mmx12mmx3mm Weight: 0.6g (excluding antenna) Antenna terminal: IPEX1 Telemetries output power: