Back in 2011, Elektor presented a DIY Ultrasonic Directive Speaker using an array of piezo ultrasonic transducers (up to 200) ...

The LEDs are arranged in two rows as you would expect, representing hours and minutes. A small piezo speaker serves as the alarm buzzer, which should be sufficient to wake up most people ...

In his implementation, the readings are relayed to a simple LCD panel for easy viewing, and a small piezo speaker is used to sound an alarm when the water level reaches a predefined threshold.

The newly launched Rubikore family promises a taste of Dali’s high end tech at a terrestrial price; does the Rubikore 2 sound ...

Much like Pioneer's start, Kicker also has its origins in a small garage in Stillwater ... a silk dome, and a Piezo tweeter and midrange. The package also includes speaker grilles and mounting ...

People tend to choose small speakers for one of two main reasons. They either have a small room and therefore cannot ...

These speakers don’t sound quite as smooth and natural as our other picks, but when mated with a good small amplifier, they’ll easily outperform most portable speakers. Their plain styling isn ...

It’s never been easier to move your music from room to room (and even outside) than with the best Bluetooth speakers ... then links down to more in-depth mini-reviews. Want to learn even ...

Hearing loss is irreversible and the most common work-related injury worldwide. Prevention is the only way to tackle this issue. But who has not been annoyed by how foam earplugs make a rock concert ...

Swedish audio brand Nocs has announced its latest powered wireless speaker. The Nocs Mini has been developed over the past 12 months at the company’s R&D lab in Lund, Sweden, aiming to produce a ...