Product name:CYCLONE ELRS 2.4GHz 7CH PWM RX Receiver CRSF Protocol for RC FPV Racing Drones Precise details: Description: Item: ELRS 2.4G PWM7 RX Firmware Name: DIY_2400_RX_PWMPEX Antenna: IPEX MHF+T antenna/copper tube antenna Microcontroller chip: ESP8285 RF chip: SX1280/SX1281 Return power: 12.5dbm/17mW Firmware version: ExpressLRS V3.2 Circuit board size: 18.5mm * 26mm Weight: 3.5g Number of channels: 7CH Working voltage: 4~6 V Protocol: PWM/CRSF switchable 7-channel full scale ELRS 2.4G receiver Switchable CRSF bus mode without firmware reset Note: Factory firmware 3.2.0. If your tuner firmware is lower than version 3.0, it is recommended to update to 3.2.0. You can use 7 PWM full scale channels, while 2. x only has 4 full scale channels PWM 6CH/7CH CRSF switching does not require firmware reset, and can be easily switched as follows 1. Turn on the receiver WI-FI network, 1) Activate receiver WI-FI using the transmitter Lua menu when connected to the high-frequency head 2) If the high-frequency head is not connected, power on and wait for one minute, and the receiver will automatically enter WI-FI 2. Computer or mobile search for WIFI WIFI hotspot name: ExpressLRS RX Connection password (note all lowercase passwords): expresslrs 3. Browser Open http://10.0.0.1/hardware.html. 4. Enter the ELRS hardware configuration page to import the hardware configuration file (note: do not modify it yourself until you fully understand the meaning of each parameter). 5. Import the configuration file we provide, PWM 7CH or CRSF, then click the button at the bottom of the page and wait for the receiver to restart itself. Package Included:​ 1x ELRS 2.4G PWM7 RX Receiver 1x Copper tube antenna 1x Even level sub T-shaped antenna x 1