The AT8464-TH Dual-Ear Microphone Holder (beige theater color) allows you to convert your single-ear BP892 MicroSet® into a dual-ear unit for maximum stability and comfort. The BP892 fits on either side of the dual-ear microphone stand, allowing you to wear the microphone on the left or right side of your mouth. The headband adjusts easily to fit both children and adults. The AT8464-TH is compatible with all BP892 and AT892 MicroSet models.