Features 1、Built‑in LED digital display voltage and current monitor, shows the accurate voltage status of device in real‑time, prevent your motorcycle or car from starting hard, off and on intermittently and the headlights not enough bright cause by too low battery voltage, or prevent your motorcycle or car from engine instability or horns stopping working cause by too high battery voltage. 2、With overload, over current and short circuit protection functions to ensure charging safety; at the same time, the built‑in reverse connection protection function can ensure that the circuit will not be burned out when the wiring is wrong. 3、Fast charging 3.0 USB port, built‑in smart charging IC, will automatically detect your devices and charge them at the best speed, thereby improving charging performance. 4、High quality PC material, precision manufacturing, making it has stable performance and long service life. 5、The installation is simple and does not require complicated operations. Specifications: Condition: 100% Brand New Item Type: USB Charger Material: PC Color: As picture shown Optional Display Color: Red, Blue, Green Input Voltage: 12-24V Output Voltage: 5V Output Current: 3.1A Applicable Models: Universal Package List 1 x Charger 3 x Accessory