More from Amazon.com : http://www.amazon.com/gp/product/B00AJHAZZ4?tag=thefatkidin06-20 <br /> <br />Monoprice 12 Inch 150 Watt Powered Subwoofer Black (109723) <br /> <br />The internal battery has an operating life of approximately 9 hours giving you a full day of audio bliss <br />This small device is designed to transmit audio to up to two sets of Bluetooth receivers usually headphones <br />The splitter has an operating range of up to about 30 feet 10 meters
