5W 5.8G 48-Channel FPV VTX Transmitter Module With 1500TVL Camera Dual Cooling Fan Built-in Microphone for FPV Racing Drones. Features: dual heat sink + dual cooling fan. Module indication: single button, double light indicator (red and blue) Antenna: standard SMA connector, 2dBi.Wiring terminal: 6-wires, JST + 1.25*3pin external camera interface. Working frequency: 5.8G;Working channel: 48CH;Working voltage: 7 - 36V;Voltage output: 5V/200mA;Power output: 200mW/500mW/1.2W/5w adjustable Material:plastic Button Description: After power on, long press the button to cycle and adjust the channel frequency, channel group, and power. Long press switch (red light), short press switch (blue light), double press to switch to Pit mode. Step 1: Long press the button to adjust the frequency point (CH1-CH8) when the red light flashes once. At this point, press the button briefly. When the blue light flashes once, it indicates CH1; when it flashes twice, it indicates CH2; and so on, adjust to the desired frequency. : Long press the button, adjust the channel group () when the red light flashes twice. At this point, press the button briefly. When the blue light flashes once, it indicates channel group A; when it flashes twice, it indicates channel group B. Repeat this process and adjust to the desired channel number. Step 3: Long press the button. When the red light flashes three times, the power can be adjusted. At this time, short press the button. When the blue light flashes once, it means 200mW, when the blue light flashes twice, it means 500mW, and so on. Adjust the power to your desired level. Finally, long press the button to save the parameters, and the red and blue lights remain on. Colour:Black & Red Due to different product batches, the appearance , which does not affect the use Package Contents: 1 x Analog Transmitter Module 1 x Antenna 1 x Camera 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.