Portable Handheld Wireless Bluetooth Karaoke Microphone

Plug the dc 5v cable output into the microphone. The microphone has a built-in circuit protection chip. You don’t need to worry about battery damage. It is fully charged for about 3 hours. The battery life is related to the microphone volume. Malfunctions: low battery: when the battery has a low voltage, the system will automatically shut down, please charge it in time. If you do not use it for a long time, please charge it at least once a month to extend battery life. Turn off automatically when power on: the battery is low, please charge it for two hours before using it. Automatic shutdown or restart: the battery is low, please charge it for two hours or fully charge it before use. Unable to charge: check whether the charging lamp displays normally, whether the power supply is normal, and whether the data line is connected well, you can also try to replace the data line or the charging head. No sound when playing: please check if the volume switch is turned off too low. No sound from microphone: please check whether the mic switch is on and whether there is a stain in the microphone mouth. Package included: 1 x karaoke microphone, 1 x usb charging cable, 1 x instructions book, 1 x gift box packaging.