SPM-1700 Series Skull Microphone Headset. Attaches to Hardhats. Microphone presses down on top of head, large speaker hangs over one ear. Kit includes Round (Hockey Puck)Tactical PTT switch. Finger-Tip PTT and Junction Box UPGRADE Available for extra charge ($35 MSRP).
Motorola / MotoTRBO XPR3300 & XPR3500 Series.
