SOUND TOWN SWM-MAX SERIES CHANNEL B MICROPHONE: The Sound Town SWM-MAX-BMIC wireless handheld microphone is the channel B microphone replacement for Sound Town SWM15-MAX and SWM16-MAX karaoke mixer systems. DURABLE CONSTRUCTION: Crafted with a tough metal body, providing long-lasting performance in demanding environments, perfect for professional use. BUILT-IN POP FILTER: The built-in pop filter reduces background noise and delivers clear, reliable sound for both vocals and instruments, ideal for karaoke and live performances. 8 FREQEUNCY CHANNELS: Offers 8 adjustable frequency channels to minimize interference, ensuring stable wireless connections in compliance with FCC regulations. EASY PAIRING: Features a simple and intuitive pairing process with the Sound Town SWM15-MAX or SWM16-MAX wireless system, so you can focus on your performance with minimal setup.