Ujjdwiurgh Portable Voice Amplifier for Teachers with Microphone Headset,Rechargeable Speaker for Training,Tour Guide,Classroom

[ power pack]. Amplifier This microphone and speaker set is a portable public address system. You can take it to multiple places such as classrooms, bingo phones and outdoors. [Powerful Sound]Small-sized voice amplifier, 8W output is clear and noise-free, enough to cover a large room of 30-100 people. Amplify your voice and protect your throat. [Rechargeable Amplifier]This amplifier has a built-in 4500mAh lithium battery, it takes 4-6 hours to fully charge the microphone speaker, but can play up to 20 hours of amplification time and up to 13 hours of music playback time. [Easy to Carry]This portable speaker is small and light, you can use the detachable clip to fix it on your pocket or belt, or you can tie it around your neck or hang it on a belt around your waist. [Support music playback]This amplifier can play TF (Micro-SD card) card and U disk. You can repeat a single song, loop all music, and switch songs.