Speedybee RadioMaster ER4 ELRS PWM Receiver: 2.4GHz 4Ch ExpressLRS Receiver Nano Module for RC Vehicles

["Revolutionary ExpressLRS System: The ER4 2.4GHz ELRS PWM Receiver is based on the revolutionary ExpressLRS system, offering high performance, high reliability, flexible configuration, fast response speed, and ultra-long range.","Compact and Lightweight: With its small volume and lightweight design, it is perfect for small aircraft models, ship models, car models, and other models that require a compact receiver without compromising on range.","Supports 4 PWM Channels: The ER4 PWM receiver can drive 4 servos simultaneously, providing flexibility and control for a variety of applications.","Advanced Features: The receiver supports automatic voltage telemetry of external battery voltage or built-in receiver voltage. It also supports Wi-Fi updates and WEBUI configuration, ensuring your receiver is always up-to-date and easily configurable.","High-Quality Components: The ER4 receiver comes with a high sensitivity 15 cm antenna and a high-quality 2.54 mm connector. It also includes heat-shrink tubes and a voltage telemetry wire for easy installation and setup."]