9 ENTECHNICAL PARAMETERSRoutine USB interface optionsPre USB Read (rechargeable 5V/1A)Video optionsExternal Video Input SystemNTSC/PAL/SECAMExternal Video Input1VP-P/75ΩAudio optionsMaximum power4x50WFront output(V):4V/10KΩPre-output impedance≤600ΩSpeaker impedance4-8ΩBluetooth optionsVoltage14.4V10.5-16V)sizeWxHxD):178x100x60MMWorking temperature -10-+70Storage temperature -20-+80Net weight0.5KgTFT Display OptionsDisplay size7Display resolution 800x480 RGBContrast degree500Radio OptionsFM Frequency ModulationFM Range87.5-108.0MHZAM FM Range522-1620KHZSupporting Video FormatH264/WMV/DIVX/MKV/FLVAudio format supportMP3/WMA/FLACCommunication system BT4.0 +EDROutput: Bluetooth Standard PowerLevel 2 Maximum communicationrange About 5 meters.Band 2.4G”