Thornton PH15AUB

* Built-in amplifier, audio and microphone input and MP3/Bluetooth * 15" unit, 450 Watt and good sound quality * Several handles and low weight make the speaker easy to take with you * Can be placed on its side and used as a monitor Active speaker, which means it has a built-in amplifier. It has 2 microphone inputs, an instrument input as well as phono and minijack input for smartphone or other music player. In addition, it has a built-in MP3 player that can play music directly from an SD card or USB. The Thornton PH15AUB delivers a whopping 450 Watts through the powerful 15" bass speakers and 1.35" tweeter. The speaker is made of strong plastic and can also be used outdoors very well. It is easy to take with you because it has two wheels, three handles and weighs little. It can be used as a front speaker or placed to the side and used as a monitor.