* ♪【HANDHELD, BLUETOOTH KARAOKE MIC】Get the fun started with our easy to use, handheld microphone by Mainstream Source. Our Bluetooth microphone keeps you wire-free so you can enjoy the freedom of movement while you sing, dance, or play. Gain better control of your singing effects with the separate Reverb and Echo function. * ♪【FUN FEATURES & EFFECTS】This portable karaoke machine mic fits easily in your hand with easy, adjustable features, like Delay, Echo, Reverb, Volume Control, Special Effects, Selfie Mode, and fun lights. They’re the perfect party accessories! * ♪【HIGH QUALITY MICROPHONE SOUND】This wireless mic plays crisp, clear, and loud with a DSP chip providing the latest technology and better quality than most similar microphones.