【High-Quality Material】 The motorcycle USB plug housing is made of aluminum alloy, resistant to high and low temperatures, and equipped with a waterproof rubber cap that won't affect its use even in rain and snow. 【Real-Time Voltage Monitoring】 The motorcycle charger is equipped with voltage monitoring that can detect battery usage at any time. If the voltage is below 12V when you start your motorcycle's engine, replace the battery as soon as possible. 【Independent Switch】 The motorcycle USB charger is equipped with an independent switch that can control the voltmeter and the USB charging port simultaneously and can be turned on and off at any time to prevent power consumption. 【Mounting Method】 Handlebar mount, suitable for motorcycle handlebars with a 2.2 cm diameter. Please measure your handlebar size precisely before purchasing! 【Strong Compatibility】 The car USB charger comes with its own QC3.0 fast charging port, compatible with various devices, and highly compatible with