Check the listing for details. Singing Machine Sml625Btwd Karaoke Machine, Portable Karaoke System, White. Color: White, Condition: Used, Made in China. Listed at 22.00 USD. The Singing Machine SML625BTW is a portable karaoke system that comes in a sleek white color. A brand new machine costs anywhere in between $80 to $120. It includes a microphone and is equipped with Bluetooth connectivity for easy connection to your devices. Its compact design makes it perfect for on-the-go entertainment or small gatherings. Turn your living room into a concert hall with the Singing Machine karaoke system that combines a CD player with Bluetooth streaming and even lets you record your performances. With vibrant LED disco lights adding that oh-so-necessary party flair, you'll be belting out your favorite tunes like a superstar in no time, so grab that mic and let the good times roll!