4 VHF (Very High Frequency) Wireless Mic Receivers In One Cool Unit.
Each operates on it's own frequency so you can use four different mic at the same time!

• 4 Channel Receiver with 2 Antennas and 2 Individual Output Level Controls.
• Audio Mute Circuit Provide Noiseless On/Off Switching
• 1 1/4" Output Jack For The Headset Mic, 1 1/4" Output Jack For Mixed (3 or 4 Mics) Output.
• 19" Rack Mountable with adapter (Included).
• Dimensions: (Receiver) 17" (W) x 9 1/4" (D) x 2" (H)
  

Pack of four for $4.99