Folding design; 58 ohms; modular cables, 1 straight and 1 10'coil, 1/8" tip with 1/4" adapter. New. These headphones are best Value & Quality we have seen in years. We use this same model on our test benches every day, Durable and Hi Fidelity, no one is ever disappointed. Can be used as a studio monitor headphone, works well with virtually any type of headphone amp, folds up nice and tight if need be, Vince has a pair that's 15 years old and the pads are finally wearing out but still usable! We don't sell lots of other headphones anymore because this is the best one!