The HD 300 Around-Ear Headphones from Sennheiser feature durable construction and a folding headband for storage when not in use. The headphones can be used for listening to music on the go with MP3 players, cameras, smartphones, audio recorders and other portable devices. The transducers are designed to provide a well-balanced sound with powerful and dynamic bass. The HD 300 includes a 4.6′ cable that terminates with a 3.5mm right angled mini-jack plug.