"GLADIATOR" SPM-1500 Series - Heavy Duty Throat Microphone: Throat mic with acoustic tube earphone. For high-noise environments. Features Tactical Touch PTT.

SPM-2500A Series - Advanced Throat Mic System: Dual element throat mic with adjustable soft neck strap. Features acoustic tube earphone and Tactical Touch PTT.

SPM-2500J Series - Advanced Throat Mic System: Dual element throat mic with adjustable soft neck strap. Features Tactical Touch PTT and jack for an optional earphone.