It is suitable for the installation and use of large-scale walking tools such as motorcycles, cars, ships, yachts, motor homes, buses, etc. Supports all mobile phones, tablets and car appliances (all models with working voltage 12-24V can be installed and used). USB is car charger Provides charging and durability. Features - Color: White. - Material: Plastic and metal - Size: 13x5.6x5.2cm - Input voltage: 12-24V - Reverse protection: Yes - Output voltage: 5V - Output current: 1A/2.4V - Anti-flame retardant environmentally friendly materials. - White casing, plus fine workmanship, the entire product looks stylish and beautiful. - The input voltage of the product is 12-24V, all trucks of 12-24V can be installed and used, and the scope of use is very wide. - The product is equipped with dual USB, which can be used for power supply of mobile phones, tablets, GPS, etc. - The product is equipped with a voltmeter, which can detect the use of the car battery at any time and prevent safety accidents caused by poor battery. - Dear buyer, due to lighting effect, monitor& 39;s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand