7 Gadgets You've Never Heard Of but Absolutely Need

The Lemon ($189) is the first solar-powered speaker with excellent 3D sound quality. It's also voice activated and waterproof. It raised more than $100,000 on Kickstarter and was developed with NASA-grade technology. The speakers integrate NASA solar cells that trap sunlight within the panels and turn it into power. Just seven hours of direct sunlight equals 20 hours of music playback time!