What I would like is less complex but still very hard: wireless earphones that somehow self-charge, from radio signals, the sun, body movement, or whatever would let you leave them on all day and never have to worry about charging them.<p>Couple that with a simple and easy way to switch between your phone and laptop. I mean these mainly for listening, to music, a video, a game, etc. But when a phone call comes in, you can switch to your phone and use them as a wireless headset.<p>Finally make them stylish. Not ornate and gawdy but just sleek and thin and with good metal, like jewelry, and everyone will just wear them all day long without self-consciousness.<p>We have to figure out how to make them self-charging though. That&#x27;s the hard part.