Note The battery will be changed to 18650 battery case in order to facilitate transport and it doesn t have balance plug for DVR module the DVR module should use another power supply thank you for your understanding The receiver on EV100 Goggles doesn t receive audio But the goggles support audio input that you can hear the audio if inputs the video to goggles Specification Frequency 5 8G 5333Mhz 5945MhzSensitivity 93dBAntenna Impedance 50ΩAntenna Gain 3dBiAntenna Connector RP SMA Video Formate NTSC PALSupport AV IN OUTYESSupport Focal Length Brightness Contrast Adjustment YESSuport Firmware Upgrading YESPower Input 7 4VLow Voltag 6 8VBattery 18650 battery caseCharging USB Cable not included Working Temp 10℃ 40Display Resolution 720 540FOV 28° diagonalIPD 58 68mmRatio 4 3Focal length adjusting under 400 degree of myopia and hyporopia 150 degreeInformation Brand Name EachineItem Name EV100Size 165mm 76mm 30mmWeight 221g with battery 57g and antenna 13g Package Weight 400gRecommanded PartsRecorderEachine EV100 Micro AV Recorder 1280 480 Mini DVR Module Support 32G TF Click HereGoggles SpongesEachine EV100 Upgraded Soft Thin SpongeClick HereMagic Double sided Adhesive TapeClick HereEachine EV100 FPV Goggles Headband Elastic Band Spare Click HereFPV VTX Eachine TX805 VTX 5 8G 40CH 25 200 600 800mW FPV Transmitter Click HereEWRF 5 8G 48CH 100 200 400 1000mW Switchable VTX Transmitte with Small Camera Click Here Tin