In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. Keep distracting noise outside and great sound inside! Whether you are looking for a headphone that will reject outside noise (from street noise to "Club" noise and everywhere in between), or for a headphone that will keep sound IN (for cutting vocals or acoustic instruments such as drums or acoustic guitars in the studio), then the K-171 Studio headphones are for you! PLUS...they SOUND GREAT, and can be used for critical listening and even mix down reference!