Having seen a host of noise cancelling headphones in our time, we were yet to find a pair that reduced, or rather cancelled that background noise without the use of electronics. Well, for me the search seems to have ended on Dr. Jozef Zwislocki’s $90 ZEM noise cancelling headphones. Why, oh because Dr. Jozef has developed the headphone with a special technique which “uses a simple amplifier to cancel background noise, yet promising to provide up to 37 dB reduction in noise in both low and high frequency ranges. Can’t wait to try these.

Via: GeekyGadgets