HifiMan Sundara headphones feature an all-new innovative headband design for an accurate fit and increased comfort. The all-aluminum ear enclosure is also designed for increased comfort. The newly developed diaphragm is 80% thinner than HE400 series headphones resulting in a wider frequency response, faster and more detailed. The HifiMan Sundara headphones are an open-back planar magnetic audiophile set of cans, priced as an entry-level music lover’s headphone. Sundara literally means Beautiful in Sanskrit. This all-new Planar Magnetic headphone fits this description in every way. Ultra-fine Diaphragm All New Planar Headphone Inherited from Hi-Fi man s Advanced Technology Featuring Newly Developed Diaphragm that is 80% Thinner than the HE400 Series Resulting in a Wider Frequency Response, Faster and More Detailed Hybrid Headband Design With the weight spreading strap for outstanding comfort but with a more fashion-conscious look with its sleek and sumptuous matte black finish. Form Follows Function With its all-metal headband the SUNDARA is built to take the rigors of urban street life. The Sundara is as tough as it is beautiful. New 3. 5mm Headphone connector for enhanced durability Pocket Powered Performance The slimline Supermini is A perfect partner for the Sundara. The Supermini with its abundance of audio power output and the Sundara's grace and poise makes them the velvet glove over a marble fist. REVIEW "In my opinion, the Sundara should be thought of as the new value benchmark, much like the HD6XX used to be, as it competes with headphones that come in at much higher price tags. Once again, I'm thoroughly impressed and somewhat shocked at how good this is for the price, and I can't think of anything else I'd rather have within a much wider price margin." - Headphones.com