Anchor Audio Beacon 2 System X4 - Beacon 2, AnchorAIR, and two wireless handheld microphones, and two wireless belt pack transmitter with collar...Anchor Audio Beacon 2 System X4 The Anchor Audio Beacon 2 is a compact, collapsible portable PA system built for athletic programs, fitness instructors, and outdoor professionals. Delivering up to 105 dB SPL, the Beacon 2 features integrated Bluetooth, Anchor Link wireless mic support, and a folding design that makes it easy to carry and store. Package Details Beacon 2, AnchorAIR, and two wireless handheld microphones, and two wireless belt pack