Product overview This compact receiver module is built on an open source low latency long range radio control architecture and firmware, and uses the ESP8285 microcontroller. It is small, lightweight, and designed for update rate applications where low latency and long reach are important. Key benefits Low latency and update rate for responsive control and smooth FPV video performance. Longrange capability with an available 2400RX variant that includes a power amplifier and low noise amplifier (PA and LNA) for improved sensitivity and a 100 mW RF output. Simple firmware management: the receiver can create a local configuration hotspot on powerup so firmware can be uploaded from a computer or mobile device using a browser. The default hotspot password is expresslrs for initial setup. Compact size and ABS construction make it easy to integrate into small airframes and models. Main features Core module: ESP8285 microcontroller Open source firmware architecture, compatible with common open source implementations for longrange RC links 2400RX option includes PA and LNA for 100 mW transmit power and better sensitivity at longer distances Builtin access point mode for direct browserbased firmware upload and configuration Small form factor for tight installations Specifications Color: B Material: ABS Size: Approx. 1 cm / 0.39 inch Core: ESP8285 Package includes: 1x Receiver Typical use scenarios FPV racing drone: Use the low latency, rate link for precise control and reduced input lag during speed maneuvers. Longrange wing or powered model: Use the 2400RX PA and LNA option to extend control range and maintain signal quality on distant flights. Remote FPV or aerial video platform: Small footprint and browserbased firmware updating simplify installation and maintenance for hobby and experimental setups. Notes Please allow 12 cm measurement variance due to manual measurement. Actual product color may vary slightly from images depending on monitor and lighting conditions.