Any company coming out with its first Bluetooth speaker this late in the game needs to bring it bigtime. BenQ, best known for its projectors and computer monitors, might be an unlikely case study for such a scenario, but its new Trevolo speaker ticks all the boxes. Not only does it strike an innovative and attractive design, but it’s packing a technological first for Bluetooth speakers: Electrostatic drivers. Known for their brilliant transparency and lightning-fast transient response, electrostatic drivers are normally the stuff of premium rarities, like Martin Logan’s line of loudspeakers. BenQ’s new TreVolo (formally eVolo) wears its pioneering set in the form of two adaptive plates that can fan out like robot wings, or fold into an angled chassis for travel. And while there are definitely some limitations at play, the TreVolo proves incorporating electrostats in a Bluetooth speaker provides a lot more than just a flashy form factor.