Pair to your phone or tablet via Bluetooth and sing along to your favorite music or YouTube karaoke videos; Works with all your favorite karaoke apps; No CDs to purchase. (Be sure to turn the volume all the way up on your phone or tablet to ensure the full-sound experience on the karaoke machine!), Light effects: Put on your own concert with the retro, front LED light show and room - effects light globe with 10 room - filling light functions such as party, pulse, breathe, chase and many more, Voice effects: 5 professional - quality voice effects including echo, baritone, alien and more, Sound effects: 6 sound effects to make your performance even more fun (air horn, cheers, applause and more), Take your singing on the road as a solo singer or as a duet (2 mics included) with this portable karaoke machine