Voice Amplifier Megaphone Mini Rechargeable Ultralight Loudspeaker with Microphone — Powerful Sound, Digital Music Playback (For Teachers)

Compact, multifunctional portable loudspeaker that combines voice amplification with digital music playback. Built with high-power speakers for clear, loud audio and a wide range of transmission. For optimal amplification, position the microphone head about 1cm in front of your mouth and speak into the microphone head. If there is howling, lower the volume and move the machine and microphone further apart to avoid interference. Recharge the battery after it has been used up; if the unit sits unused for long periods, charge it once a week.