Using the Singing Machine Mini Sparkle Bluetooth Karaoke Speaker is easy. First, connect your Bluetooth device to the speaker. Then, choose your favorite karaoke songs and start singing. You can use the lead vocal - off feature to let your voice take center stage. Try out the six voice - changing effects for some extra fun. Record your performances and play them back to see how great you sound. For the light show, just turn it on and watch it sync with the music. When using the wireless microphones, make sure they are within range. Keep the speaker and microphones away from water and high - heat places. Clean the speaker with a soft, dry cloth regularly to keep it in good condition. Have a great time singing!