The Pyle PMP22GR is a compact and portable 20-watt megaphone speaker that provides high-powered sound projection. It offers two modes: Voice Talking to amplify your voice and Siren Alert for emergency situations. The megaphone features an adjustable volume control for clear sound and an ergonomic grip for comfortable use. The lightweight design includes a convenient folding handle for easy storage. It is powered by 4 'C' batteries (not included) and has an audio projection range of up to 400+ yards.