The Sennheiser HD 415 is a set of open, dynamic stereo headphones that have a unique silver design. A cable winder is included for adjusting cable length and the cable itself is single-sided, meaning it only attaches to one side of the headphones. Open supra-aural design means the headphones let sound escape, giving a more open natural sound. This is not practical in noisy environments however due to the fact that outside noise can also get in. These budget-priced headphones have foam ear pads for a comfortable extended wear. These headphones share a lot in common with the HD 435s but their lower price means they contain a lower frequency response (up to 19000Hz) and high distortion (0.5%).