Review on YANTU Cordless Portable Tire Inflator: Rechargeable Electric Air Pump for Car Tires, 150 PSI, Digital Display, Removable Battery by Shawn Quick

This product is designed for cars, so the size is too big to carry in a backpack for cycling, etc. Otherwise it's a great product. It was super easy to use, I figured out how to inflate my first tire without using the manual. Tip: Short press the power button to convert to PSI! Car and SUV hotkeys are cool, but you rarely have both. It would be nice if the keys were reprogrammed as "Favorites". You may want to upgrade your bike and car frequently. All in all this is a great product.