Solid Signal > Personal Audio/Video > Speakers > Tech Choice 6914
To get loud booming sound you generally need two things in a speaker large cones to move large volumes of air and a lot of power to drive those cones back and forth. Without those you get thin tinny sounds and not much volume. That in a nutshell is what you get from most mini portable speaker system designed for use with laptops music players and cell phones. The Portable Sonic Resonance Speaker from Tech Choice changes how audio is delivered by phasing with any clean smooth flat surface you attach it to and turning the entire surface area into one huge driver. You get even more air pulsing surface area than you get from traditional cone drivers.
- Duration: Up to 20 hours after fully charged
- Dimension: 127 x 47 x 27mm
- Power: Built in rechargeable lithium battery
- Charging input: DC 5V via mini USB
- Audio input: 3.5mm audio jack
- Frequency range: 40Hz-20KHz
- Output power: 2W RMS
- Net weight: 200g
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