PRSM-HD1
Platinum Series Heavy Duty Remote Speaker Mic w/3.5mm accessory jac

PRSM-HD1-WPTT
Platinum Series Heavy Duty Remote Speaker Mic w/3.5mm accessory jac and wireless PTT

PRSM-HD2-NC
Platinum Series Heavy Duty Speaker Mic w/ 3.5mm jac and background noise cancelling mic

PRSM-HD4
Platinum Series Heavy Duty Speaker Mic w/ 3.5mm jac and tough polycarbonate casing

PRSM-HD5
Platinum Series Heavy Duty Speaker Mic w/ 3.5mm jac, tough polycarbonate casing and antenna

PRSM-HD3
Platinum Series Speaker Mic w/ 3.5mm jack