Convenience of tabletop portability. Powerful 50W multimedia ready amp with stereo inputs and outputs. Professional handheld mic with flexible gooseneck to accommodate various speakers. All units run on 10 D batteries (not included) for up to 200 hours talk time, APL-S1460 AC adapter or convert AC adapter to a rechargeable system with APL-S1465 NiCad battery pack (both sold separately). Color: Walnut; Maximum Audience: 1000; Audio Coverage: 10000 sq. ft..