SHURE, wh20tqg

Shure WH20TQG Headset Mic with TA4F Connector for Shure Bodypack Transmitters Miniature 4-pin Female Connector for Shure Bodypack Transmitters
  Shure WH20TQG Headset Mic with TA4F Connector for Shure Bodypack Transmitters (WH20 TQG / WH20-TQG)

The Shure WH20 is a rugged, lightweight, dynamic headset microphone that provides high-quality voice pickup.