Special Upgrade: Innovative motorcycle USB charger with on/off switch and three installation options (see table), provides energy saving and device protection, prevents battery drain. Composite type, disassembly availability, easy assembly and convenient carrying. LED Digital Voltage Display: The SAE adapter has a built-in voltmeter. Automatically monitors the battery and electrical system and shows the voltage on the screen, you will know the battery health status while riding. There are multiple protection functions: input overvoltage, undervoltage protection; output overcurrent, overvoltage, undervoltage, short circuit protection; reverse connection protection; Internal high temperature protection of the chip. USB sockets, output 5V3.4A / 9V2.5A / 12V2A, allow you to charge two smartphones or tablets at maximum speed at the same time. Safe Charge: Built-in protection system to protect your device from overvoltage, overload, overheating, short circuit, etc. It can be used to power