This 901-piece RC robot offers a variety of functions and even responds to voice commands.

Save 55% on the 2-in-1 Remote and App-Controlled Robot Building Kit at the Mashable Shop.

The Shark Matrix Plus 2-in-1 with a self-empty base has become a dutiful part of my cleaning routine. Here's what I love and its pain points.

Prime Day deals are making it more affordable to do just that, such as the 46 percent discount on Shark's AI Ultra 2-in-1 Robot Vacuum — one of Engadget's best vacuums of the year.

Apr 2, 2012 7:13 am PDT [Photo: Randy Sarafan] If you ever bought yourself or your kids a remote-control car, you’ll know how quickly people get bored of them, leaving the toy tossed to one side.