We’re pretty sure we’ve seen this exact concept deployed in a half dozen sci-fi flicks over the years (although no specific examples come to mind), so we’re glad to see somebody actually acting on the idea. The $10 Earlight clips over your ear like a Bluetooth headset to illuminate your view without tying up your hands. Looks like a great thing for those who work in dark, confined areas. We wouldn’t mind seeing somebody attach an LED light source to actual Bluetooth headsets. You know, for kids.