In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. Maximum isolation and AMAZING sound are the two main attributes of the K 271 Studio headphones. The K 271s combine the benefits of AKG's circumaural design for extreme comfort and a closed-back design for maximum isolation from ambient noise, making them the ultimate studio headphones. The K 271s have already been rated by many top magazines as a "best buy", and with a new lower price, these headphones are hard to beat!