Before you try to connect your phone to the karaoke set, you should keep in mind that not all of them have Bluetooth connectivity features. First of all, make sure that yours come with an inbuilt Bluetooth option. If it does, then turn on the device using the power switch. There will be another button on the karaoke set to turn on the Bluetooth tethering. Press the button and search for the karaoke set on your phone’s Bluetooth menu. Wait till the Bluetooth name of the karaoke appears and click on it to connect. Depending on the device, the pairing will take anywhere from 30 to 90 seconds.