To start with, make sure your Bluetooth microphone and speaker are completely charged. Turn on each devices and help Bluetooth pairing mode. Once connected, test the audio quality by playing music through the speaker while singing into the microphone. You can take pleasure in Hello-Fi stereo sound quality in https://www.bluetoothspeaker.top/bass-high-quality-loud-bt-tws-bluetooth-ipx6-outdoor-waterproof-wireless-bluetooth-speaker/