If you're looking for some lightweight earbuds with great active noise canceling, the H2O Audio Ript Lite are hard to beat at this price point.

But after a couple of years of work, xMEMS has arrived at the next generation — ultrasound through a solid-state speaker.

The Beats Fit Pro and second-gen AirPods are both a few years old, but that doesn't mean they're long in the tooth — here's ...