Speaker Microphones, a full range from the basic SPM-100, to the new SPM-4100

Observer Speaker Microphones - LOW COST - Lightweight and Small	SPM-2100 Trooper Speaker Microphones - Professional Heavy Duty, Water and Rain Resistant
SPM-3100-3100P Speaker Microphones - Heavy Duty, Public Safety Grade - Tactical Touch PTT	SPM-3100A 3100E Antenna Speaker Microphones
NEW SPM-4100 Series Speaker Microphones - Waterproof, Multi-Feature, Heavy Duty.	WTX-4100 Series Speaker Microphones - Multi-Feature, Heavy Duty, with WIRELESS PTT