Ideal way to install battery in one microphone
The wireless microphone is 5V powered, it only needs to be welded on the two contacts and connected to the output of the charging bank.
2, wireless microphone is more than 5V power supply, as long as the two contacts on the wire welding, connect the booster plate, the power bank output voltage can be increased to the specified voltage.
3, the wireless microphone is less than 5V power supply, as long as the two contacts on the wire welding, connect the voltage reduction plate, the power bank output voltage can be reduced to the specified voltage