["Description:\nbrand new and high quality\nFeature:\nBased on the current scoring for time, accurately calculate the remaining capacity of the battery and the charge capacity.\nSupport for An-droid cellphones to connect Bluetooth-compatible display parameters, set and modify parameters, independent display screen display parameters.\nThe protective board is built-in temperature control monitor, safe and reliable to use.\nThe display screen has the speed testing function, calculate remaining mileage.\nSet an independent watchdog for real-time detection program plus secondary for protection, never crash.\nCan lock the battery for not be discharged, modify the Bluetooth-compatible name and password.\nIt can connect with the computer, provide real-time monitoring and better for protection.\nOver-charge, overdischarge, over-current, short circuit, high-temperature, and static electricity for protection.\nEasy and simple to connect and install.\n\nSpecifications:\nItem Type: for Protection Board\nMaterial: plastic+metal\nSize: protective board: 138x102mm/5.4x4.01in, Bluetooth-compatible module: 50x17mm/1.9x0.6in\nColor: As shown\nOptional Type: 1, 4\nVoltage/Current: 3.2V/100A, 3.2V/120A, 3.2V/60A, 3.2V/80A\nQuantity: 1 PC\n\nNote:\nTransition: 1cm=10mm=0.39inch\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:(Optional)\nType 1: 1 x Bluetooth-compatible Module\nType 4: 1 x UART Communication board"]