Swings Bluetooth Earrings with built-in earphones showcase a practical, clever idea for people with pierced ears. Swings certainly could fix the problem of losing Apple's expensive AirPods to the ether or having to root around in one's pockets or purse to find one's tangled-up headset. The earphones are in the lower part of what look like beaded earrings, and the motion accelerators determine when you have swiveled them to nestle inside your auricle. You can expect five hours of listening time out of the Swings on a single charge.