Features: 1.3A Charging Port: The motorcycle USB charger is equipped with a 3A charging interface, which can charge mobile phones, tablets, GPS, etc. 2.Digital Display Voltage: The motorcycle fast charger is equipped with a voltmeter, real time detects the use status of the battery and prevent safety accidents caused by bad batteries. 3.Independent Switch Design: The motorcycle phone charger is designed with an independent switch, which can control both the USB and the voltmeter, it can be turned on immediately. 4.Waterproof Charging Adapter: Motorcycle USB charge adaptor is waterproof, can be used in any weather, practical and durable to use. 5.Aluminum Alloy Shell: The shell is made of aluminum alloy, which is resistant to high and low temperature and flame retardant. Specification: Item Type: Motorcycle USB Charger_x000D_ Material: Flame Retardant Nylon Material + Aluminum Alloy_x000D_ Input Voltage: DC12V_x000D_ Line Length: Approx. 150cm/59.1in_x000D_ Measurable Voltage: 6-30V_x000D_ Output Parameters: 5V/3A_x000D_ Maximum Power: 30W_x000D_ No-Load Power: 0.18W_x000D_ Voltmeter Color: Red_x000D_ Working Temperature: -20-80_x000D_ Installation Diameter: The Diameter is within 2.2-2.6cm/0.87-1.02in for Installation and Use