Features: COMICA CVM-WS50 wireless mic system features 6 channels, wide frequency range and up to 60m/197ft effective distance(30m in barrier area). Built-in metal phone holder suitable for phones whose width is less than 8.9cm. LCD screen for displaying channels and audio status. Support stepless volume adjustment, mute and real-time audio monitor. Built-in rechargeable battery can last for about 8h. Extendable for connection with grip(included), tripod, LED light etc. Sent with a portable carry bag to store everything neatly.