The Shark UltraCyclone Pro Cordless Handheld Vacuum is very convenient and versatile. It can go places where a bigger vacuum would struggle like in nooks and crannies and vehicles. The vacuum is powered by a lithium ion battery which recharges with the included AC adapter. Overall, I liked the vacuum, however, I feel like suction could be a little better since it took multiple passes in order to suck up dust and crumbs. Also, the power button could use some redesign as it is very easy to accidentally press it while the vacuum is in use. However, despite these two minor issues, I would still recommend this Shark cordless vacuum.