RadioMaster ER4 ExpressLRS 2.4GHz / 4CH PWM Receiver

The RadioMaster ER series of PWM receivers are based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed, and ultra-long range bringing you brand new experience with your hobby. The ER4 PWM receiver can drive 4 servos simultaneously. Designed with a very small volume, it is suitable for small aircraft models, ship models, car models, and other models that require a small or lightweight receiver while still providing full range.   FEATURES: Based on the Revolutionary ExpressLRS System. High performance, high reliability, flexible configuration, fast response speed and ultra-long range. Support 4 PWM Channel. Optimized ground-up PCB design. Automatically voltage telemetry of external battery voltage or built-in receiver voltage. Supports Wi-Fi updates and WEBUI configuration. High-quality 2.54 mm connector. Standard 15 cm High Sensitivity Antenna. For small aircraft, boats, cars, and more. Compatible