Q1:Wireless microphone and amplifier cannot be paired.
1. Turn off both the wireless microphone and amplifier;
2. Turn on the wireless microphone;
3. Short press the power button of the wireless microphone, it will display one of the frequency bands H00--H49;
4. Press and hold the volume "+" and "-" buttons of the wireless microphone at the same time until the wireless microphone displays "--" and release it;
5. Turn on the amplifier and wait for the automatic pairing to succeed;