Countryman B6W5FF05BTS  B6 Omnidirectional Wireless Lavalier Microphone for Telex Transmitters (Black) B6 omnidirectional lavalier microphone is all-purpose, rugged, affordable lavalier that is easy to hide Fits Telex transmitter models LT100, PST16, VB12, WT10, WT50, WT55, WT60, WT80, WT700, WT1000 Microphone is suitable with TA4F connector Sensitivity is -10dB mid gain (red band) for theatre head miking Available in black color