Eachine ATX03S 5.8GHz 40CH 25mW/50mw/200mW Switchable FPV Transmitter Smart Audio With Microphone for RC Drone Description: Brand name: Eachine Item name: ATX03S Mini FPV Transmitter Output power: 25mW/50mW/100mW/200mW adjustable Input voltage: 3.3V-5V 5V camera supply, 245mA(MAX)-----25mW@4.2V (Typical) 5V camera supply, 310mA(MAX)-----50mW@4.2V (Typical) 5V camera supply, 390mA(MAX)-----100mW@4.2V (Typical) 5V camera supply, 517mA(MAX)-----200mW@4.2V(Typical) Video format: NTSC/PAL Antenna dimensions: 55mm X 2mm diameter Antenna: IPEX Frequency: 5.8GHz 5 bands 40 channels Size: 19*16mm(LW) Weight: 2.959g Features: * Support 0.01mw Parameter-adjusting Mode. * 25mW, 50mW, 100mW and 200mW power switchable. * One button frequency and power setup. * OSD configuration using smart audio. * With mic. Button control channel select mode Channel select Select 8 channels by simple short presses. Green LED light on stands for CH1,short presses to change 8 channels sequentially. For CH2/3/4/5/6/7/8, Green LED flicker once it won't light on Notice: Green LED only light on for CH1. Band Select Press button for 2s,Red LED will flicker,then short presses to select 5 band A/B/E/F/r sequentially. Notice: Red LED1 only light on for Band A. Power select Press button for 4s,Blue LED will flicker,then short presses to select power 25mW/50mW/100mW/200mW sequentially. For 50mW/100mW/200mW, Blue LED flicker once, it won't light on Notice: Blue LED only light on for 25mW. Pit Mode(0.01mW) While in Pit Mode you can change channels and set power levels, but none of these changes will take effect until you quit Pit Mode. By default, Pit Mode will send a very weak signal Package included: 1 X FPV Transmitter 1 X IPEX antenna 1 X Cable 1 X Instruction