Often enough I wish I could share tunes on my ipod with family and friends or even co workers. Due to my unwillingness to carry the right equipement along with my daily things i always carry with me, the thought just died. The Kensington FX 300 Speaker To Go is lightweight albeit durable case that has volume and on/off buttons on the exterior. Just plug in your MP3 player (any MP3 player) and you're ready to go. There's also space for earbuds and other essentials. The speakers take 2 AAA batteries, which the company says is good for 10 hours of play.