Spalding 8372E iPOD/MP3 Speaker System

Features Adaptable to all digital media players with headphone jacks (MP3, iPod(r), etc.) Fits securely to square and round poles of any size Can also be used as a portable, stand-alone speaker system Weather-resistant for both indoor and outdoor use Features a speaker/headphone jack, cover to secure your MP3 player (sold separately) Requires 6 AA batteries