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BenQ treVolo S Portable Bluetooth Electrostatic Speaker - White/Silver Top View

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BenQ treVolo S Portable Bluetooth Electrostatic Speaker - White/Silver


Model Highlights

Let your music take flight with BenQ treVolo S, the world's smallest portable Bluetooth speaker with prestigious Electrostatic Speaker Technology, delivering astonishing clarity and accuracy for your favorite vocal and acoustic music. Vertical dispersion of the entire thin-film diaphragm offers bidirectional sound projection for a more detailed audio performance and accurate delivery of natural, crisp and clear sounds. Close your eyes and immerse yourself in a compelling audio scene with non-distorted 3D audio technology and rich bass powered by dual woofers and dual amplifiers. It is a musical journey that elevates you, taking you to new heights of audio satisfaction.



  • Hear all the details in your music with Electrostatic Speaker Technology

  • Enjoy a rich and expressive bass performance with dual woofers and dual amplifiers

  • Enhance your audio enjoyment with non-distorted 3D and duo modes

  • Connect to devices conveniently with NFC + USB DAC/charging

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  • Overview
  • Specs
  • Warranty
  • Downloads
  • Accessories
  • Reviews

Take Music’s Beauty With You to New Height

Designed with BenQ’s Electrostatic Speaker Technology, treVolo S takes you to new heights of audio satisfaction as you enjoy natural sound of astonishing clarity.



True Sound at Your Fingertips 

The unique electrostatic drivers of treVolo S minimize distortion, offering you an excellent on-the-go audio experience that looks as refined as it sounds.

Natural Sound

Enjoy the details in your music as the thin-film diaphragm vibrates, emitting very natural, crisp and clear sounds forward and backward through the foldable, electrostatic panels.

Spacious Sound

Turn on our non-distorted 3D mode to hear an impactful level of sound and spaciousness while dual woofers and dual amplifiers deliver a rich bass performance.


Low Distortion for Crisp and Clear Sounds

Electrostatic Technology

The treVolo S uses the same Electrostatic Speaker Technology that is typically reserved for high-end speaker systems. With a distortion rate that is only one-tenth of the rate of conventional speakers and no cabinet resonance, electrostatic speakers deliver natural and spacious sound.
* Conventional speakers have a distortion rate of 10% while electrostatic speakers have a distortion rate of less than 1%.



Brilliant Performance from Bass to Treble

Dual Woofers x Dual Amplifiers

Powered by dual 12W woofers, dual amplifiers, and dual vibrating diaphragms, the treVolo S produces smooth, rich bass sounds and distinguishable sweet highs.


Proprietary Non-Distorted 3D Mode That Transports You to the Live Music Scene

Activate non-distorted 3D mode with a touch of the button, instantly transforming your room into a live house, bringing you an unforgettable, immersive listening experience!


Mix and Match

Duo Mode

Pair two treVolo S together to find the most suitable speaker configuration for any purpose.

Stereo Mode

Connect two treVolo S audio systems for a left/right speaker configuration and fill your room with lifelike sound.

Party Mode

Maximize your auditory experience and double the fun with two treVolo S speakers connected in Party Mode.


Continuous Play

Equipped with long lasting batteries, treVolo S gives you 18 hours of uninterrupted audio enjoyment, whether you’re camping or on a road trip.


Share Music On-the-Go

Carry treVolo S with you to any gathering and let the music fill the air. Share every rhythm and mood in the song with your beloved ones.


Convenient Connections


NFC – One-Touch Connection

Easily pair your smartphone or tablet with treVolo S by lightly touching your device to the N mark on treVolo S.


Frequency Response‎
Frequency Response‎ 60 Hz - 20 kHz‎
Duo mode‎ For 2 treVolo S pairing (Stereo / Party mode)‎
NFC‎ Yes (for auto turned on and BT pairing)‎
Bluetooth‎ Bluetooth 4.2‎
Input Types‎ 3.5 mm stereo input ; USB audio‎
Playing Time‎ 18 hours (Dependence on user scenario)‎
Physical ‎ 
Key Definition‎ Power, BT pairing, Volume +, Volume -, 3D (mode), play/pause‎
LED Indicator‎ Power key : Red LED x1; Green x1
BT Pairing Key : Blue LED x1‎
Other Information‎ 
Battery‎ Built-in rechargeable lithium-ion battery‎
Accessories‎ USB Charger, Quick start guide, Warranty card‎
IO Port‎ Micro USB x1 ; Line-in x1‎
Input Power Rating‎ DC 5V 2A‎
Temperature range for use‎ 0~40º C‎
Dimension‎ 96.3x157.5x63.2 mm (Closed)‎
Weight (Without Packing / With Packing)‎ About 1kg‎


1 Year Limited Warranty