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 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 thing. The measurement allowed error is +/- 1-3cm.