Like an earmuff with sound. The Earbags Adventure are just that. They fit over your ears to keep them warm, and with the SOUNDears accessory, they will also provide a fit-in speaker and to connect to your favorite iPod or MP3 player. While there are other models of Earbag, the Adventure model comes with a clip to attach the Earbags to your clothing which is best for sports when there’s no helmet. But put simply: want to stay warm and listen to music, use Earbags plus SOUNDears to do it.