NorwiiS358 Portable 4000mAh Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black)

I use to be a Substitute gym teacher and this device is indeed ... loud. Works wonderfully inside the gym and classrooms. This device does win 5 stars BUT! My only complaint (or recommendation) is how the ON and OFF works on this device. It should be a button, not the way that it is. If they can fix that one day, this would be 10 out of 10. Still 5 stars overall.

Amplificador funciona bien, cómo mejora reemplacé el microfono por uno de solapa.

My autistic son love music and he loves to sing . He was very happy with it so that makes me happy.

This was for a pickleball instructor. They report it is simple to use and works great amplifying their voice in a loud gymnasium.

I'm a music teacher who works in a LOUD setting. I've bought several of these and always found them to be not loud enough. I finally bought a large speaker and mic set that I have used for a long time, much more powerful... and much more expensive. But I'm trading it in for this now! I bought this 4 months ago and have been really impressed. It is powerful and the battery really last a long time. I have not had trouble with any feedback. Last year I seriously hurt my vocal folds and this is a lifesaver. I STRONGLY recommend it. For the price (and more) you can't get anything better!

Bought this to replace another brand one that kept breaking after about a month. This one is so much more reliable. I manage a tour company, and bought one for myself, and also for one of my guides. Have been using it for about 7 months, and it's really good! Not very heavy, so won't add a lot of weight, especially important on tours where you're walking around for 3 hours! Highly recommend!

My nonprofit ordered 15 of these for a haunted cemetery walk to make actors and guides easiest to hear. They worked wonderfully and were easy to use. They amplified well and were comfortable to wear for several hours.

Es muy bonito con sus aristas redondeadas, es plástico de buena calidad y la batería le dura mucho. No me gustó el micrófono de diadema porque tiene el cordón delgadito, que lo hace aparecer frágil, pero el soporte acopla muy bien alrededor de la nuca y la extensión del micro se gradua muy bien cerca de la boca por lo cual amplifica de manera satisfactoria. Lo he usado dos meses, si estás leyendo bien, 60 días, un promedio de cuatro horas cada día con la carga inicial que le hice (que tardó muchas horas). Por eso le doy 5 puntos. Ya he comprado varios para otros colegas de la escuela donde trabajo.