How to adjust the volume?
There are volume adjustment buttons on both the receiver and the handheld microphone, making it easy to adjust the volume of each microphone separately.
How to use multiple sets together?
Turn off all devices. Turn on one set of receiver and mics, pair them, and keep them on. Repeat this step for other sets. Keep all paired devices on until all sets are paired.
How long does the microphone last on a single charge?
These microphones can be used for 7-9 hours after a full charge (2-3 hours).
Can it be connected to a karaoke machine?
Yes. You can connect the receiver to the speaker using a 6.35mm audio cable, or the receiver's LINE-OUT port to the speaker's AUX-IN port with a 3.5mm audio cable.
Can I connect other devices to it via Bluetooth?
Yes, you can. First, connect the receiver to the speaker, and then pair your phone or tablet with the "TONOR TW790" Bluetooth device. You can then play music from your devices.