1. OBD-II charger uninterrupted charger. 2. Dual USB, fast charge QC 2.0 standard output. 3. No interference, no impact on car. 4. Self-contained protection circuit when over current, over heat. 5. Rated input: DC 12V-24V. 6. Rated output: 5V/2.1A, 9V/1.2A, 12V/1A. 7. Size: 47*42*22mm. 8. Color: OBD upper cover is grey, lower cover is white.