Check the listing for details. C20 Plus Portable Wireless Mini Karaoke Speaker. Color: Beige, Condition: Open box, Made in China. Listed at 28.99 USD. The C20 Plus Portable Wireless Mini Karaoke Speaker is an all-in-one karaoke system that includes a microphone and speaker in a compact and portable design. It features a beige color and is manufactured by a company that offers a 1-year warranty. This karaoke system is designed for ease of use and enjoyment, making it a perfect choice for karaoke enthusiasts looking for a convenient and stylish option for their singing adventures.