CYCLONE Nano 2400RX ExpressLRS ELRS 2.4GHz Open Source CRSF Protocol High Refresh Rate Ultra-Small Long Range Mini Receiver for RC Drone Precise details: CYCLONE series receivers are based on ExpressLRS open source architecture and programs, we have released 3 types of RX receivers, all use ESP8285mcu. You can upgrade the firmware via WIFI. Usually, you only need to supply power to the receiver, when the remote control is off, you can find the ExpressLRS hotspot after 60s by default, connect to this hotspot through a computer or mobile phone, the password is expresslrs, and then you can access 10.0.0.1 to upload the receiver hotspot. The Nano2400RX receiver has a power amplifier (PA+LNA), so it has a 100mW telemetry output and better sensitivity at longer distances. It adopts the IPEX1 generation antenna base and cooperates with an external dipole T-type antenna. -Description: Brand: CYCLONE Model: Nano 2400RX Type: ISM ESP8285 processor Frequency range: 2400MHz-2500MHz Refresh rate: 25Hz-500Hz Working voltage: 4.5-5.5v Weight: 3g Working Protocol: CRSF Agreement Dimensions: 11x18x3mm -Pacakge Included: 1x CYCLONE Nano 2400RX Receiver