Bring karaoke night to the next level by incorporating the fun and portable Singing Machine unidirectional wireless dynamic microphone. Simply plug in the included VHF receiver’s 6.3mm plug, add four AAA batteries (sold separately), and enjoy wireless voice amplification in mono sound. This full-sized microphone will give you the diva experience as you sing along with your favourite tunes. | Singing Machine Unidirectional Wireless Dynamic Microphone (SMM107CA) - Black