Firmware: Target Option 1: Generic Esp8285 6 x PWM 2.4Ghz RXReceiver PWM via 1 ~6. 6 PWM OutputsTarget Option 2: Happymodel_EP_2400_RXCrsf serial receiver via tx and rxFirmware update via WIFIParameters: ESP8285, SX1280/1281Antenna connector: IPEX MHF 1/U.FL6 x PWM outputsRF Frequency: 2.4GHz (2400~2480MHz)Telemetry power: 12dbmReceiver protocol: PWM or CRSFInput voltage: +5V ~ 8.4VDue to different batches, there may be differences in the appearance, color, and printing of the product, which will not affect its use.Material: PCBcolour: purplePackage Contents: 1 x EPW6 TCXO 2.4GHz PWM Receiver2 x 2.4GHz antennaOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.