Portable Voice Amplifier, ELEGIANT Rechargeable 38W Loudspeakers Amplifier with A Strap and A Comfortable Waist Hanging Microphone for Tour Guides, Teachers, Coaches, Presentations, Etc. - Black Package included hanging microphone and remote control, adjustable strap, was comfortable to wear. Very loud, excellent clarity, low feedback. Small, portable and easy to carry, but it's a high power voice amplifier. It is a small and super portable amplifier with built-in, rechargeable lithium batteries that offer up to 8 hours of continuous use. Good for public environment, it offers digital circuitry with a 38-watt power output to amplify your voice to everyone in the group. It also supports multimedia file playback functionality from USB drives. Good for Tour Guides, Teachers, Coaches, Presentations, Costumes and so on. It easily connects to a variety of straps for versatile carrying options. Its convenient on/off dial is also capable of adjusting the volume output to your desired level.