HIFIMAN SUNDARA Planar Magnetic Over Ear Hi-Fi HeadphonesFeaturing Newly Developed Diaphragm that is 80% Thinner than the HE400 Series Resulting in a Wider Frequency Response, Faster and More Detailed. With the weight spreading strap for outstanding comfort but with a more fashion conscious look with its sleek and sumptuous matte black finish With its all metal headband the SUNDARA is built to take the rigours of urban street life. The SUNDARA is as tough as it is beautiful New 3. 5mm Headphone connector