DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y BenQ treVolo, 2.1 channels, 2.5" (6.35 cm), 60 - 20000 Hz, Wired & Wireless, 2.1 portable speaker system, Silver BenQ treVolo. Audio output channels: 2.1 channels, Woofer diameter: 2.5" (6.35 cm). Frequency range: 60 - 20000 Hz. Connectivity technology: Wired & Wireless. Product type: 2.1 portable speaker system, Product color: Silver, Volume control: Digital. Recommended usage: Universal https://www.soundandvision.com/content/benq-trevolo-electrostatic-bluetooth-speaker Portable Bluetooth speakers range from toy-like novelties you can tote along in the shower to high-end Danish audio lunch boxes designed to survive a day at the beach. In between, you'll find plenty of other options ranging from cheap and bad-sounding to... Spacious sound, Fold-up, portable design, Cool conversation piece Limited volume, Limited bass, Pricey compared with Bluetooth speakers with similar volume/bass capabilities BenQ's treVolo is a lush-sounding Bluetooth speaker that should please audiophiles with reasonable expectations... https://hometheaterhifi.com/reviews/speaker/wireless-speakers/benq-trevolo-speakers-review/ This review takes a look at the first portable Bluetooth electrostatic speaker system.BenQ is a firm that is known for a world class line of professional DLP video projectors, monitors and digital signage. The Ben Q treVolo is the world's first portable B... Very cool, high tech design, Excellent sound quality, Easy to use Larger, more powerful model With the treVolo, BenQ has produced an impressive package of portability, technology, and fun. While the small treVolo could fill a larger room with a healthy amount of sound, it also avoided the beaming electrostatic sound I have heard in older designs.T... https://www.ilounge.com/index.php/reviews/entry/benq-trevolo-bluetooth-portable-electrostatic-speaker At almost three pounds, the treVolo is probably a bit heavy for frequent portable use, though it does come with a built-in rechargeable battery if you'd like to use it in that way. Thankfully, this heft can mostly be attributed to high-quality design. Alm... The BenQ treVolo ($299) is an electrostatic compact portable Bluetooth speaker with a unique set of components. It comes from BenQ, a company known mostly for projectors and monitors — treVolo is the company's only speaker. The name “treVolo,” roughly tra... https://www.pcmag.com/review/330437/benq-trevolo Electrostatic speakers employ a unique technology that can produce a great deal of sound from a flat surface, without the need of a large space for sound to resonate like a conventional speaker. They're typically found in homes with multi-thousand do... Excellent clarity in the mids and highs. Rich, natural bass response. Unique design with folding electrostatic speaker panels. Built-in speakerphone. Digital signal processing kills transient peaks at mid-to-high volumes. Not for big bass lovers. System doesn't get as loud as most similarly sized/priced competitors The BenQ TreVolo is a portable electrostatic Bluetooth speaker that offers crisp audio in a unique design....