Noise-Cancelling Device for City Street Sounds: "a volume knob for everyday life" that allows you to selectively "dial up or turn down the sounds of car sirens, traffic horns and other intrusive distractions"

http://ift.tt/1vvAZvX



Submitted November 29, 2014 at 05:27AM by CapnTrip http://ift.tt/11CBmdx