VocoPro’s Pop-up Oke is an all in one wireless Bluetooth karaoke microphone with light show speaker. It’s the most convenient way to add karaoke fun anywhere or anytime. Connect your phone or tablet via Bluetooth and use YouTube to enjoy hours of karaoke entertainment or use the onboard MP3 SD/TF player to perform with your own MP3 tracks.(SD/TF memory card not included) The multi-color LED lights can be turned on or off, and will dance to the beat of the music to add visual excitement to the karaoke session. The innovative music link(tm) technology allows you to link two Pop-up Oke and perform duets. Having two Pop-up Oke mics means having twice the power and sound.