Bluetooth® Audio Portable BuddyA complete presentation system built into a rugged, compact carrying case. Powerful 50 Watt multimedia stereo amp, reach up to 1,000 people outdoors or in rooms up to 10,000 square feet. Bluetooth wireless technology, stream audio wirelessly from your smart phone, tablet, or any other Bluetooth® enabled device. A proven "Road Warrior", specially tooled and molded plastic briefcase-style enclosure for exceptional durability and portability. Travels and sets up so easily. Dual wireless option, accomodate multiple presenters. By adding a second Wireless Mic Kit (sold separately) two presenters can be wireless simultaneously with the freedom to roam within a 300 ft. radius. Powered by 10 D-cell batteries for up to 200 hours of talk time or choose optional rechargeable NiCad battery pack (requires S1460).