Logitech Speaker Z50

portable mini speaker - A 3.5mm audio line in makes it super simple for you to plug in just about any audio device and listen to all your multimedia entertainment in surprisingly powerful sound. Portable mini speaker for smartphones, tablets, or laptops Plug-and-play 3.5mm audio line in Powerful 2.25-inch driver 10W peak power AC power - no need to recharge The mini speaker uses an AC power supply. Just plug it in to a wall outlet for reliable power without battery hassles.