Note: The packaging in this product will mention V2, however the software is confirmed ELRS V3. The RP2 has a ceramic antenna, super light & small, ideal for racing. Built-in WIFI lets you upgrade firmware & configure the receiver via WebUI on PC/mobile. Low latency & high refresh rate makes it perfect for FPV & long-range flights. Also great for whoops, drones & fixed-wing models, as this nano receiver can fit anywhere! Developed by Jye Smith & the ExpressLRS team, it uses ESP8285 MCU & SX1280 RF chip. The EP2 comes with ELRS Firmware V3 pre-installed and a TCXO oscillator for solid connection & reliability. Check out the rest of our RC receivers and all our RC transmitters, modules, and accessories!   Features TCXO oscillator for solid connection & reliability. Improved PCB design is better for heat dissipation. LED on the top side of PCB. Solder pads are improved and easier to solder to. Open-source receiver based on ExpressLRS Upgraded rigid antenna with greater durability and performance Specifications MCU: ESP8285 Type: ISM Antenna: On Board SMT Antenna Bus interface: CRSF Power input range: 5V RF Chip: SX1280IMLTRT Maximum receive refresh rate: 500Hz / F1000Hz Minimum receiver refresh rate: 25Hz Firmware Version: ExpressLRS V3.0 pre-installed Signal format: ELRS FW Target: RadioMaster RP2 2400 RX Size: 13 x 11 x 7mm Weight: 0.55g (On Board antenna) User Manual RP2 Receiver User Manual Includes 1 x RadioMaster RP2 V2 2.4GHz ELRS Nano Receiver - Ceramic Antenna 1 x User Manual