For indoor/outdoor use; 40W max output; Talk, siren & music modes; 3.5mm aux input ; Ability to stream MP3 & digital audio files; Ability to connect external devices; Button-activated automatic siren alarm; Adjustable volume control; Ergonomic pistol grip & lightweight chassis; Projection range: up to 1,000 sq yards; Requires 6 D batteries; Weight: 2.2lbs; Dim: 8 dia x 13.13L; Includes plug-in handheld microphone;