Originally introduced in 2007, the Altec Lancing Orbit MP3 is a portable speaker for enjoyment of music on the go. Powered by 3 AAA batteries, the unit can be run for a full 24 hours. Featuring a 40mm speaker driver that is pointed upwards, the sound it produces is projected in all directions. Unlike many iPod docks, the Orbit MP3's primary signal is fed by a 3.5mm headphone jack, making it compatible with all MP3 players, laptops and portable media players, and most phones. Comes with a 3.5mm interconnect, and protective case. The current model revision introduces a smaller and slightly more sturdy looking design, however the basic functionality of the device remains the same.