Leadsinger LS-3222 Duet Microphone for LS-3700 All-in-One Karaoke System Duet microphone for people who want friends to sing along to karaoke favorites Designed for use with the LS-3700 all-in-one karaoke system Ultra-high bandwidth signal with noise reduction for great sound Controls many of the LS-3700 functions, including play, pitch, speed, and volume Wireless design is easy to use and handle