Skip to main content

Meet TreVolo: the first ever electrostatic Bluetooth speaker

The sheer abundance of portable speakers on the market today seems to stretch through the industry like so many stars across a black night sky. In an attempt to add some eye-catching sparkle, manufacturers have auditioned a multitude of features and designs. But BenQ, known primarily for its displays and projectors, has unveiled a dashing new speaker called the TreVolo that’s caught our eye with a first-of-its-kind feature for the genre: electrostatic drivers.

Electrostatic driver technology is nothing new. The design, which creates sound by exerting force on a thin membrane suspended in an electrostatic field, was pioneered back in the ‘50s. Known for their crystalline transparency, and lightning-fast response due to a diaphragm that’s a fraction of the size of standard dynamic drivers, electrostatic speakers are primarily used in high-end systems designed with audiophiles in mind.

BenQ’s gorgeous new speaker looks like something pulled from J.J. Abrams’ gleaming new Starship Enterprise. The sleek metallic cube can rest in place, or expand its gull-wing speakers to create a more expansive sound stage — an impressive form factor. While BenQ is mum on exact specs for its new creation, the TreVolo offers easy-access controls along the topside, a claimed 12 hours of battery playback per charge, and a promise of “unparalleled highs and accurate bass.”

Please enable Javascript to view this content

However, that claim of “accurate bass” points to an issue that has us a bit apprehensive about the TreVolo’s performance. Apart from their delicacy and difficulty to engineer, there’s a reason electrostatic speakers are employed sparingly and haven’t gained mainstream prominence in the industry: they’re notoriously poor at reproducing low frequencies. Add to that the fact that BenQ isn’t exactly a goliath in the audio field, and there’s reason for concern when it comes to bass.

Still, we don’t normally expect, or encounter, a huge bass response from most portable speakers we evaluate. And apart from being drawn to its engaging aesthetic, we’re extremely curious to find out how this unique little speaker handles our music catalog, especially in the upper registers.

BenQ hasn’t announced an exact release date for the TreVolo yet, but it is slated for release in November this year, ahead of the holiday season. The speaker will be available in black or white, at an expected MSRP of $300. You can bet we’ll be getting our hands on an TreVolo as soon as possible, so stay tuned for our impressions when the speaker makes its primetime debut.

Updated 3/9/2015: This post was updated due to a change in the name of the speaker from eVolo to TreVolo by BenQ.

Ryan Waniata
Former Digital Trends Contributor
Ryan Waniata is a multi-year veteran of the digital media industry, a lover of all things tech, audio, and TV, and a…
There’s a new way to listen to Apple Music Classical, plus brand new music
new way to listen apple music classical on web d19dc3

If you’re a classical music lover, there’s excellent news. You no longer need an app to listen to Apple Music Classical. The service is now also available directly through the web, making it available wherever you have a browser.

Launched in March 2023, Apple Music Classical aims to enhance the experience for classical music listeners. It has an extensive catalog of over 5 million tracks, including famous masterpieces and lesser-known gems.

Read more
The Samsung S90D 42-inch OLED TV has a $400 discount
A Samsung S90D TV on a white background.

Samsung is well known for its amazing lineup of 4K and 8K TVs. Available in numerous models and sizes, one of the staple sets of 2024 was the Samsung S90D, an OLED of epic proportions. The S90D should be available through much of 2025, but we came across a fantastic discount for the 42-inch size while researching TV deals:

For a limited time, the Samsung 42-inch S90D 4K OLED is on sale for $1,000. That’s a $400 discount on one of the best OLED TVs of the last several years.

Read more
Google’s Android Beta 16 includes support for Auracast
An Auracast demonstrator points to a transmitter at a mock airport gate showing the technology at CES 2024.

The new Android 16 beta build released today for developers will include support for Auracast, which enables earbuds and hearing aids to connect to public and private audio streams thanks to the Bluetooth LE standard. A demonstration of Auracast technology at CES 2024 showed how it could be used in environments where public service announcements can be difficult to hear for all of us, but particularly those with hearing impairment. We've been excited about the technology for a while now, and the Android 16 beta support is a great step forward for broader implementation.

The new update will allow compatible devices -- be it hearing aids from GN Hearing or Starkey, or earbuds like the JBL Tour 3 Pro -- to receive broadcasts from compatible TVs or public transmitters with Samsung Galaxy devices with One UI 7, Android 15, or Google Pixel 9 devices running the Android 16 beta. For those connecting with a hearing aid, your hearing aid presets will be applied to the broadcasts. With the update, Google is rolling out the ability to connect to broadcasts with a QR code instead of needing to go into the devices settings. The QR code implementation will be available first on Pixel 9 devices.

Read more