Review on 🎤 18W Waterproof Wireless Voice Amplifier Bluetooth Teacher Microphone - Portable Voice Enhancer Headset Mic, Rechargeable & Ideal for Classroom and Outdoor Use by Runbi Alvarez

This is a great amp for the money. I often use it for presentations. Glad the sound quality is great. The bad news is that you have to strap the booster around your waist for it to work stably. Otherwise the sound will be interrupted. So be aware that if you buy this it will need to stay on your waist or attached to the included strap for it to work.