Inexpensive, wafer thin, compact, lined stereo speakers that press into your helmet’s ear pockets or hang in the helmet lining with accompanying hook and loop pads. Speaker plugs into the included 40" cord. Reasonable sound quality, but the more important thing is the price, that they fit anywhere, and plug directly into any player with an 1/8" (3.5mm) headphone output jack. 2"×2"×.25", 1.75 oz.