Rechargeable megaphone

Handheld Megaphone Loud Rechargeable Support Recording Portable Bullhorn for Broadcasting Stall

1PCS 7.4V 3000mah 18650 Li-ion Rechargeable Battery Pack with XH2.54 Plug 18650-2S Lithium Battery for Megaphone Speaker Parts

SUNNY Hand Handy Microphone Can Use Supports Comes with Siren Black Megaphone, Loudspeaker, Recording/Playback Function, Batteries, Rechargeable, 30W,

8W Voice Amplifier Megaphone Portable 2200mA Rechargeable Audio Speaker Loudspeaker With Microphone For Teachers Tour Guide

Amplifier Rechargeable Mini Speaker LED Screen Display Loundspeaker Megaphone for Meeting Tour