Bescor BMW-PRO Wireless Microphone System with Two Microphones.

Miniature size transmitter & receiver (2.4" x 0.9" x 4.1"). Two switchable crystal controlled 170 mhz channels allow 2 units to be operated side by side. Crystal clear reception at over 150 ft. Receiver has flexible "rubber ducky" antenna. Transmitter has mini plug input for hookup to any microphone. You can either plug in the high sensitivity lapel microphone or the noise canceling handheld microphone. Also included are camcorder hookup cable, monitor earphone & batteries.