Review on 🔊 Wireless Bluetooth Waterproof Voice Amplifier with Speaker - Small Personal Microphone for Teachers and Outdoors by Ryan Lawson

The battery charge is too short. I use an amplifier because I have damaged nerves in my larynx and vocal cords. I won't be heard unless my voice is amplified. I found this amp to not last long enough. In addition, the speaker kit has the same problem - the battery is not enough! I would be happy to receive suggestions on this topic. Thanks very much!