Active Noise Cancelling Headphone

By Grissom 　http://www.noise-cancelling-headphones-reviews.com/active-noise-cancelling-headphone/

Noise-reducing earcups gently surround the ears to offer maximum benefits for blocking external noises and allowing wearer to hear previously undescernable sounds. Lowered ambient noise reduces the need to raise the volume as high, as recommended by audiologists for hearing safety
Power LED indicates active noise cancellation, or headphone can be used with power off for passive noise cancellation only
The headphone folds flat inside its hardshell storage case while not in use
Includes 5 straight cord and 1/8″ to 1/4″ audio adapter for connecting to media players. Package includes 2 AAA batteries.
Provides approiximately 23 dB SPL noise reduction (much higher than many comparable headphones).

Product Description
Active noise cancellation headset perfect for reducing noise in any noisy environment while listening to music or speech. High quality drivers for clear sound. Incorporates unique technology to enhance high frequency components of signals to create clarity in both music and speech signals…. More >>