ITEM NAME:2in1 Led DC12V-24V 2.1A Universal Car Charger USB Port Phone Voltmeter For J5R5 2in1 Led DC12V-24V 2.1A Universal Car Charger USB Port Phone Voltmeter For J5R5 Compatible with any 12V-24V Car Motorcycle Boat Marine ATV RV Vehicle. Waterproof, Dustproof and High quality socket with USB fast charger and sealing cover.Can be used for the interior and exterior application. Charger for iPhones, Mobile Phone, iPads, Tablets, Camera, MP3, GPS, PSP, Power Over-heated, over-current, over-charging protection; It will stop charge automatically when your device is fully charged.Can be installed vertically, horizontally or underneath the dash, or any flat surface. Digital voltmeter with blue LED indicator light, perfect for travel use.Over-heated, over-current, over-charging protection with front cap. Waterproof protective caps ,USB cover and digital voltameter. Waterproof dustproof material can be used for the interior and exterior application. Product Usage: Can be used to mobile phones, tablet, IPAD, GPS and other most of the car supplies power supply. CANNOT SMOKE!!! Material: ABS(Acrylonitrile Butadiene Styrene) Color: RED Power Input: 12V-24V Power Output: 5V 2.1A Waterproof Level: IP66 Protection: Reverse Connection Protection Product Size: 3.7cm x 5.4cm (1.46inch x 2.13 inch) LED Voltmeter Display Range: 8-25V Fix method: find a place to screw, the bracket and screw together, or find a plastic place to make a hole to fix the stent. Installation method: red positive, black negative, this product has anti-protection. This product is new and is like playing a new witty choice Package Contents: 1 x LED Single USB Car Charger Adapter 2 x Insulated Terminals Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Protection: Reverse Connection Protection. Compatible with any 12V-24V Car Motorcycle Boat Marine ATV RV Vehicle. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.