Eachine DTX03 DVR 5.8G 72CH 0/25mW/50mW/200mW Switchable VTX FPV Transmitter w/ Audio NTSC/PAL for RC Drone Precise details: Specification: Brand name: Eachine Item name: DTX03 DVR FPV VTX Output power: 0/25mW/50mW/200mW switchable (Set output power on 0, to avoid frequency interference) Input voltage: 3.2-5.5V Current consumption: 630mA-390mA(25mW) 750mA-450mA(50mW) 970mA-550mA(200mW) Video system: NTSC/PAL Video format: AVI Output signal strength: 14 1db Output impedance: 55 Audio carrier: 10K Audio carrier level: -28- -30dBc Micro SD Card: Max 32GB (CLASS 10) Operating temperature: -10 - 60 degrees C Antenna dimensions: 22mm X 29mm diameter Antenna: 4 lobe right hand circular polarized Frequency: 5.8GHz 9 bands 72 channels, with Raceband: 5325-5945 MHZ Size: 28*18.04mm(L*W) Weight: 6.97g Operation: 1. The menu Settings- Short videos, click the CS2 key end video, long press the CS2 again can enter the Settings menu function Long press CS2 again can exit menu function set to return to the main page - Quit video, enter the menu function keys need short press + long press CS2, CS1 and CS3 choose for scroll up and down keys.Long click CS2 can exit menu to return to the main page 2. Video recording - Insert SD card boot default automatic video, short press the CS2 key end video, short press the CS2 key again for the next round of video 3. Video playback Long press CS1 enter the video play page, CS1 and CS3 choose for up and down keys, CS2 button to play and suspend,then long press CS1 can exit play video reverse back to the main page 4. Adjust the power operation - Powering on the vtx, blue LED display 0, indicating the vtx is powered on, but it is in off status without any transmission - Short-press the button to change channel (CH), digital display will change synchronously. Digital display changes cyclically from 1 to 8 - Long-press the button for 2 seconds until digital display flicker. Then short-press the button to change the frequency band (FR), digital display will change synchronously. Digital display changes cyclically from A b E F r U o L H - Long-press the button for 5 second until digital display flicker. Then short-press the button to change the power, 25mW/50mW/200mW (one hyphen stands for 25mW, two hyphens stand for 50mW,and three hyphens stand for 200mW) - 5 seconds after setting, CH, FR and power will flicker alternately NOTICE: The vtx has memory for settings. To change the settings, please repeat steps as above Features:0 / 25mw / 50mw / 200mw switchable With digital display,all by your control Ultra-frequency,72CH give you unlimited space With DVR function, images can be acquired and recorded in real time Unique storage memory function, super audio processing technology,a key to playback Package included: 1 x Eachine DTX03 FPV transmitter