The Anchor Audio Beacon Line Array Single Speaker with Built-in Bluetooth is a portable, line array speaker that folds up into a durable case on wheels, has a retractable handle & nylon storage bag. It unfolds in less than a minute and stands about 6 feet tall. The lightweight array tower has eight 4" speakers and the base has three 8" sub woofers. It has built-in rechargeable batteries, operates 6-8 hours on a full charge and there is a battery charging LED bar indicator on the back. It comes with a USB port for charging an MP3/iPod. It also has two universal microphone input jacks. There is no stand needed, just roll it into place.