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

Apple said that it would be launching Powerbeats Pro 2 in 2025, and now further evidence of the wireless earbuds has surfaced ...

The government needed to recruit lots of soldiers and wanted people to support them. Posters were printed that made the army look exciting. Other posters told men it was their duty to join ...