EWRF 701U 5.8Ghz 48CH 25mW 600tvl F1.4mm 120 Degree Wide Angle 3 in 1 AIO Video Transmitter FPV Camera VTX for FPV Racing RC Drone Precise details: -User Guide 701U After powering up, the red & blue LEDs will signal the fllowing two items of VTX in tum: channel and band.(the flashing times of the red and blue LEDs indicate the item and the value respectively. After that, the LEDs indicate the working modes : thered &blueLEDareon.) The first step : Press and hold the buttonuntil the red LED flash 1 time whichmeans the item of channel seleting, then press. the buttoncan select the channels(blueLEDflashing times corresponds to the channel1-8). The second step : Press andhold the buttonagain, the redLEDwill flash 2 times whichmeans the itemofband selecting,then press the buttoncanselect the band(blueLED flashing times corresponds tothe bandA-F) The third step : Press andholdthe button again, theredLEDwill fash3 timnes whichmeansthe temofimage flip selecting, then press the buttoncan selectthe vertical picturereversal . The fourth step : Fillypres andholdtebutton, save andetesetingofETX(Thiss stessiatotettingt. -Description: Item Name: FPV Camera Model: 701u Type: Copper tube antenna Working current: 220mA Size: 13.5x15.9x17.2mm Working voltage: 5V (2.5-5.5V) Adjustment methoud:Use the button Power: 25mW Channel: 48CH Weight: 3.6g Camera: 120° wide-angle camera Video: PAL Resolution: 600TVL Image flip: support Focal length: F=1.4mm -Package Included: 1x camera Note: 1. Make sure that there is enough space for airflow when insaling the module on the drone in case the overheating protection starts to reduce the power even to shut down at the worst. 2.Please install the antenna before powering up for a longer use life.