Upgraded design Designed with a new ONOFF switch button, 12V24V USB Car Charger 2 Ports can control USB charging ports and LED voltmeter flexibility, which saves you from the trouble of repeatedly plugging and unplugging the charging cord and helps you with your battery. Dual USB Car Charger Dual USB charging ports with single output of 2.4A 4.8A allows you to charge 2 devices at high speed at the same time. In addition, the builtin smart charging IC will automatically detect your devices current and power requirements, and then charge your devices at the optimal speed, protecting your devices from overcurrent and heat. Digital LED display 12 volt USB port for car equipped with a blue integrated LED voltmeter, which can monitor the vehicle battery and let you know the battery health during driving, and then avoid abnormal voltage. Waterproof design It is designed with a rubber USB plug, which makes it waterproof and dustproof, better protecting the internal circuit and effectively improving the service life. accessories for all 12V24V vehicles, ATV, motorcycle, bicycle, truck, golf cart, RV, boat, SUV, etc. Easy installation The size of the USB charger socket fits the vehicle dashboard. Just open a hole about 3cm in diameter. And plug this socketto the fuse box for electricity,to negative. Then insert the socket and screw it firmly. Compatible with all USB powered devices such as 11 8 8 Plus7 6S, Galay S10 S9 S9 S8 S8 S7, Android tablets, power bank, smart watch etc. Color black Material copperABS Package Contents 1charger 1Connection cable with fuse cable length 60CM, the port color is random, do not accept the specified color Friendly Notes 1. Please note that the voltmeter value is only displayed until the socket is connected to the power. 2. For cars, we recommend that you get power from the fuse box. For the motorcycle, we suggest that you connect to the wires on the key switch. The above package content only, others are not included. Note Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is13 cm.