Click here to download the manual RX5808EVOUSERMANUAL EN docSpecifications SMA Style SMA Jack Connector Female SMAWorking Frequency 5 8GHzInput power 420mA 5VChannel Numbers 48 ChannelsCompatibility Fatshark V1 V2 V3 SE HD1 HD2 HD3 HDOS goggles Fatshark Attitude V3 V4 Features Good anti interference ability to improve image quality Built in OSD and OLED display New Algorithm allows smoother and more accurate RSSI reading for better antenna switching Built in Low Power Buzzer Improve Fatshark DVR video quality better Smooth Switch Video Switching TechnologyPackage included 1 x URUAF RX5808 EVO Receiver1 x Manual