Google Home ($129 at the Google Play Store) is one of our favorite smart speakers, but its dependence on power from a wall outlet limits its mobility. Ninety7's Loft aims to solve that problem: It's a battery that attaches to your existing Google Home to provide on-the-go power, so you can easily take it with you from room to room, or into the garage or yard--or even on the road if you want to use your Google Home as just a Bluetooth speaker. The Loft costs $49.95, but Ninety7 slashed that price tag to $29.95 for Black Friday/Cyber Monday, and it was still available for that price as of press time. When I first pulled this base out of the box, I was surprised by how light and sleek it is. Its simple design seamlessly integrates with the look of the Google Home, with a hard plastic outside and a smooth form that doesn't get in the way of sound quality.