Fangrui Product Details With Built-in Power Self-check Function, You Can Quickly Check Whether The Image Transmission Is Working Properly Frequency Point Locking Function, Power On Without Interfering With Companions It Has Both 30.5*30.5 And 20*20 Mounting Holes To Improve The Compatibility Of The Rack 25mw-1600mw Power Is Adjustable, Allowing You To Switch Seamlessly In Different Environments Made Of High-quality Materials, Sturdy And Durable Output Power: 0-25-400-800-1500-1600mw Input Voltage: 6-36v Adjustment Method: Button/osd Working Current: Less Than 400ma@12v,800mw; Less Than 620ma@12v,1600mw Output Frequency: 56ch(a-b-e-f-r-x-l) Antenna Interface: Mmcx Mounting Hole: 30.5x30.5mm--20x20mm Video Format: Ntsc/pal Automatic Detection Colour:as Shown Material:plastic + Metal Package Contents: 1 X Vtx 1 X Mmcx Antenna 1 X Cable Only 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 Thin