• Room-filling sound reproduction from your MP3, iPod or laptop; folds to size of a paperback!
• Amplified aluminum speakers produce powerful true-to-life clarity with volume control
• Connect any MP3 player, CD player, or laptop through headphone output jack (included)
• 3-way power options: connect to AC power (adapter included) or computer via USB cable (included)
• For ultimate mobility operates for hours on 4-AA batteries (batteries not included)

Big sound without big size--easily slips into backpack or briefcase. Built-in cradle holds most MP3/iPod styles; 6"H x 8"W x 5"D (folded size just 8" x 5.5" x 1.25"). Rugged ABS construction with on/off switch and up/down volume control. Great for dorm rooms, office, bedroom or travel. Includes 12W AC power adapter, headphone output/input cable, and USB-to-Mini USB cable (optional 4-AA batteries not included). MP3 player - iPod not included. One-year warranty and Jack's Tool Shed worry-free Satisfaction Guarantee.