... , RS485 ports, speed rate 150 ~ 19200/bpsBuilt-in Lipo battery to supply power, more convenient and stableSmall and simple, image ... data from control equipmentPOWERPower supply:DC 5V (2A)Battery supply:Built-in Li-ion battery of 3.7V, capacity 2000mAh Charging:Need 3 ... auto stand by can save power, it's can display battery dataSYSTEM DATAOperating set:Chinese / English OSD menu, optionalAuto stand ...