This IPOD case and personal music system can also be used as an MP3 case. The IPOD carrying case serves as your own personal music system, protecting your MP3 player or IPOD from damage. It connects to any music player through headphone jacks. This IPOD case or MP3 case serves as more than something to carry your gear. Check out these cool features: - Play your iPod(TM) or MP3 - Integrated 5 watt amplified speaker - Protect your iPod(TM) or MP3 while listening to your favorite music - Neoprene material cushions & protects delicate electronics - Carabiner to clip it to your belt, backpack, purse or golf cart - Easily connects to any music player through the 3mm headphone jack Operates on 2 "AA" batteries (not included). Our personal music system will let you hear your music at levels never thought possible. The 5 watt amplified speaker will impress you with it's boisterous sound.