AmpliVox Mity-Meg Plus Megaphone - 25 W Amplifier - Built-in Amplifier - Battery Rechargeable - 8 Hour

Detachable microphone with 3ft coiled cord makes talking easy Battery indicator lights allow you to quickly monitor battery status Lithium-ion battery eliminates hassle of frequent battery replacement Automatic charge protection stops charging battery when full Volume/gain knob provides more control over sound