This is the winter sports helmet with built-in headphones that receive Bluetooth® signals from a remote transmitter that plugs into your iPod® or other MP3 player, providing you with a personal soundtrack while skiing or snowboarding, ensuring no audio wires will impede your mobility. The upper shell is durable injection-molded ABS, while the lower shell is made of a polycarbonate with an EPS foam liner. Includes 16 airflow vents, removable ear pads, vent plugs, easy-to-adjust straps, and a goggle-securing lock. Small (fits heads 20"-21" around); Medium (up to 23"); or Large (up to 25"). (17 1/2 oz.)