Listening center provides everything you need to conduct audio lessons for groups of up to six individuals. Lightweight headphones deliver crisp, high-quality audio to let you hear sounds as they were meant to be heard. Listening center includes a Bluetooth/CD Boombox with AM-FM radio, six-station jack box and six mono headphones with volume control. Top-loading CD player on the boombox also has Bluetooth connectivity. Helpful control buttons include Stop, Play, Pause, Repeat, Previous and Next. Headphone jack box features individual volume control knobs, a 3.5mm connection to boombox and screw-on, 1/4" adapter. Boombox is also equipped with an LCD, built-in microphone and telescope 18" antenna. Use the retractable carry handle to easily relocate. 10-watt listening center operates using AC 120V/60Hz or six C cell batteries (sold separately). All components fit into the polypropylene, lockable carrying case. Center weighs 18 lb. when all components are loaded into the case.