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 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