BenQ treVolo S Electrostatic Bluetooth Speaker #benq #trevolo #electrostatic #bluetooth #speaker The BenQ treVolo S Electrostatic Bluetooth Speaker  for Audio Enthusiast is Here! Up to now electrostatic speakers were pretty much only available in large form factors.  BenQ not only made it smaller but with it's unique folding panels it's extremely portable and sounds great too.  You don't have to be an audio enthusiast to appreciate the low distortion and natural tones that are reprodu...