Listen to your cell phone in your car with "Auto Tunes". This universal auxiliary speaker provides loud clear stereo sound and fits most MP3 players, cell phones, smart phones (like Blackberry, iPhone, iPod and iTouch). "Auto Tunes" is designed to fit into the cup holder of your car and is perfect for older cars. Two speakers have a full range of sound and the unique patent pending design does not take valuable console space. It's flat surface even works outside the car for use on your desk or nightstand. Perfect for amplifying your laptop speaker or just cranking up the tunes from your favorite playlist. "Auto Tunes" has a built in tunnel to allow for charging and runs off of 4 AA Batteries (not included) or your own adapter with built in AC adapter port. Has 2 1.5" full range drivers, on/off switch and volume control. Ideal for home, office and travel.