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Take your portable audio to the next level with the black BenQ treVolo Electrostatic Bluetooth Portable Speaker. This speaker produces sound through a pair of electrostatic panels, each of which layer a thin sheet of graphite-coated conductive polyester film between two perforated metal grids. When current passes through the grids, it creates an electrostatic field that vibrates the film back and forth to produce sound.
The anodized aluminum cabinet houses a pair of 2.5" subwoofers as well as passive radiators. The panels fold against the sides of the cabinet for portability and can be opened up for a wider soundstage. Two dual-channel class-D amplifiers drive the speakers, and the built-in three-channel DSP chip handles crossover filtering and equalization.
Bluetooth 4.1 with aptX: Lets you stream higher bitrate audio from your computer or mobile device with reduced latency from up to 30' away micro-USB line-in: Allows for pure digital audio signal transmission with your mobile device's micro-USB cable 3.5mm AUX line-in: Connect any audio device with a 3.5mm AUX headphone port with a 3.5mm to 3.5mm stereo cable (not included) 3.5mm AUX line-out: Use a 3.5mm stereo cable (not included) to connect to your mid-to-large Hi-Fi audio system and use your treVolo as a Bluetooth receiver
Pure: Minimal DSP processing Warm: Softer sound with more emphasis on bass Vivid: Emphasizes detail and the tones of lead instruments such as vocals, guitars, horns, and strings
An integrated noise-cancelling microphone lets you take calls on your treVolo. When you're done, your music will resume automatically.
A rechargeable lithium-ion battery provides up to 12 hours of playback on a charge.
Volume, sound mode, play/pause, and Bluetooth pairing keys
3 x colored LEDs indicate which listening mode your treVolo is in
Advantages of Electrostatic Drivers
Low mass allows the speaker to change frequency faster than conventional cone speakers.
Electrostatic speakers are open on both faces of the speaker, instead of just one. This allows them to send sound backwards, where it can bounce off of walls and other surfaces and provide better coverage.
Lack of sealed enclosures prevents enclosure resonance and other unwanted artifacts.
Broad Frequency Range
Electrostatic drivers can cover a more broad range of sound, allowing for a crossover frequency deeper in the system's frequency range, away from the most sensitive areas of the human auditory system.
In the Box
BenQ treVolo Electrostatic Bluetooth Portable Speaker (Black)