Riedel TAC-E1R is an Ultra-lightweight headset for demanding applications, in which maximum intelligibility paired with a secure fit is key. Optimized for use with Bolero. Flexible mic boom with clip for securing cable to clothing. Monaural (left or right ear) electret headset. XLR4F connector for use with custom or generic earpiece; generic earpiece included; custom earpiece not included. Upon request, information on the process of acquiring the custom earpiece will be shared.