Weighs only 4 lbs., just plug in and speak! Easy-to-use 50-watt built-in multimedia stereo amplifier is a complete presentation system in a lightweight, sturdy plastic carrying case. Features 6" x 8" built-in speaker and professional handheld microphone with 15' cable. Stream audio from any Bluetooth-equipped smartphone or tablet. Powered by 10 D-cell batteries (not included) for up to 200 hours of talk time. 6-Year Warranty. 11" x 13 1/2" x 4 1/2". Works up to 300'. Includes wireless headset and lapel microphone.