[Considerate and Worry-Free] Upgrade High Quality - All Metal - Built-in Smart Boost PD3.0 and QC 3.0 USB Socket, Offer Limited Time New Product Experience Price, 60 Days Worry-Free Money-Back Guarantee, 5 Years Replacement, Lifetime Support. Ouffun Car Charger, your ideal choice. Innovation and Technology: Our 12V USB outlet utilizes the latest chip technology to provide a boost function, allowing for charging of tablets at 15V and computers at 20V even when the input is only 12V (The latest boost technology pioneered by our Ouffun brand). We've also increased the length of the product for higher power and improved the aluminum texture for faster heat dissipation.