FPV 5.8G Tower Video Transmitter 1W High Power Heat Dissipation2-4S for Drone Features: Stable output power, 4 power levels up to 1W, 1000mW super power, suitable for long range flight with good stability. Support OSD tuning reference TBS and 2-4S power supply It is small and light Free heatsink with purchase Specification: Frequency:5.8G Channel:48CH Power:0/100/200/400/1000mW Voltage:DC-7-26 Current:100mW(250mA)/200mW(320mA)/400mW(440mA)/1000mW(570mA) Antenna:IPEX4 generation interface Volume:30*26*6mm Button Configuration: After powering up, long press the button to cycle through channel frequency point, channel group, and power. Long press to toggle (red light), short press to toggle (blue light), double press to toggle PitMode (red light/blue light) 1.Long press the key when the red light flashes once, adjustable channel frequency point (1, 2, 3, 4, 5, 6, 7, 8). At this time, press the button briefly to switch the channel frequency point. The blue light flashes once to indicate the channel frequency point 1, the blue light flashes several times to indicate the corresponding channel frequency point; 2.Long press the key when the red light flashes twice, adjustable channel group (A,B,C,D,E,R). Press the button briefly at this time to switch the channel group. The blue light flashes once for channel group A. The number of times the blue light flashes increases by one, which is indicated as (B,C,D,E,R) in turn. 3.Long press the button when the red light flashes three times, can adjust the power. Short press the button to switch the power, the blue light flashes once for 100mw, flashes twice for 200mw, flashes three times for 400mw, flashes four times for 1000mw. 4.After adjusting the parameters, finally long press the button, the red and blue lights are always on to enter the save mode. 5.Press the button twice quickly, when the red light is always on and the blue light is off that means the RF is off. Press the button twice quickly, when the red light and blue light are always on that means RF is on. Package Includes: 1*Audio Video Transmitter Kit Note: Dimensions are manually measured,please prevail in kind Due to manual measurement, please allow an error of 0-1cm. please make sure you don't mind bidding before. Due to differences between monitors, images may not reflect the actual color of the item. Thank you!