Fat Shark 65.8GHz Diversity OLED ReceiverThe Attitude V5 comes with an internal connection to a second antenna port to enable diversitywithout needing an external cable. The receiver can scan the surrounding channels with oneclick, automatically detect it at any time during use, and automatically select the stronger one ofthe two antennas to receive the display.If you wish to replace the included receiver, You should take out the OLED module door. There is a blue FPC cable in the lowerright corner of the module. Pull the FPC connector to the right, loosen the blue FPC cable Take out the OLED receiver, and insert your new module (Rapid Fire)Module Specifications:OLED display: Frequency group, channel, frequency / antenna selection indication / RSSIButton: Select Frequency group/channel/source modePower Supply: 3.3~5 VSensitivity: ≤ -90 dBRF Signal level: -90 dBm~+5 dBmVideo format: NTSC/PAL(Auto select)Operational environment : -10~65 °CChannel table as below:Code Name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8F Band F 5740 5760 5780 5800 5820 5840 5860 5880R RaceBand 5658 5695 5732 5769 5806 5843 5880 5917A Band A 5865 5845 5825 5805 5785 5765 5745 5827E Band E 5705 5685 5665 5645 5885 5905 5925 5945L Band L 5362 5399 5436 5473 5510 5547 5584 5621AV in AV inmode closed closed closed closed closed closed closed closed18650 Headset Battery PackThe Fat Shark headset battery pack with a row of stylishblue LED indicators allows you to visually check itsremaining capacity (4 levels) to prevent a suddenpower/vision lost. Large capacity pretty much lets you fly allday. It seats securely in the headset strap pocket. The softsilicone battery cable extends out of the top of the pack toavoid contact with head strap. Barrel connector cablefeatures high strand count wire for flexibility and long life.Wire stress is minimized by the additional rubber gasket around the cable exit.