50 Watt multimedia stereo amplifier reaches up to 1,000 people outdoors or in rooms up to 10,000 square feet. Wired handheld mic. Stream audio from any Bluetooth equipped smartphone or tablet. Built-in Jensen design speaker. Three microphone inputs (dynamic, condenser, wireless). Connect to other audio devices for enhanced playback or recording. Weatherproof and scuff-resistant molded black luggage-type plastic case holds up to abuse and protects amplifier. Case contains sturdy foam shell for storing microphone and accessories. Runs up to 200 hours with ten D-cell alkaline batteries (not included), or use the optional rechargeable AmpliVox S1465 NiCad battery pack with S1460 AC adapter/recharger.