Fangrui Product Details Vtx : Channel 8ch; Control Protocol Irc Tramp,supports Osd Parameter Adjustment; Power: Pit 25mw, 200mw,1600mw; High Efliciency Dc/dc Power Supply Supports 7-36v; Support 5v Voltage Output Mounting Hole: 305 X 305mm/m3 Holes Product Parameter Transmitter (sky Side): Input Voltage: 7-36v Dc(2-6s) Output Voltage: 5v/05a Weight: 156g (without Antenna) Dimensions (l W H): 37mm X 46mm X 175mm (including Sma And Fan) Video System: Pal/ntsc Number Of Channels: 8 Channels Channel Selection: Short Press To Switch Frequency Transmission Frequency: 8ch, See Frequency Table For Details Transmitting Power: 33dbm1dbm(max) Power Adjustment: Power Adjustment Button, Short Press Switch Power Number: Fourth Gear, 25mw, 200mw, 1600mw; Antenna Interface: Sma Modulation Type: Fm Due To Different Batches, There May Be Differences In Product Appearance, Color, And Printed Text, Which Will Not Affect The Use Colour:random Color , Dont Accept The Specified Color Material:pcb Package Contents: 1 X Vtx Kit Only The Abov