it turns out that these are generally called an air amplifier, such as those from Exair and are often used for cooling and ventilation, with some having an adjustable opening to adjust the ...

it turns out that these are generally called an air amplifier, such as those from Exair and are often used for cooling and ventilation, with some having an adjustable opening to adjust the ...

BOSS has announced the Katana-Air EX Guitar Amplifier, a new wireless desktop amp for guitar and bass players. Katana-Air EX delivers professional stereo sound and signature Katana tones in a ...