Pryme SPM-3033 Quick Disconnect Sonic Headset for Motorola CBPRO GP HT JT MTX PRO 2-Way Radios. Compatible with Motorola CBPRO, GP1280, GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP650, GP680, GP960, HT1250, HT1250LS, HT1550, HT1550XLS, HT750, JT1000, MTX8250, MTX8250LS, MTX850, MTX850LS, MTX9250, MTX950, PR860, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150, PTX700, PTX760, and PTX780. SONIC Series - SPM-3000 - Surveillance Kit , Lapel Mic Style (1-wire) with Noise Reducing Mic element and Special Bullet style speaker which tends not to plug up with wax as bad as coiled tubes plus has less audio leakage. Pryme SPM-3000, SONIC, Medium Duty Lapel Microphone. Rugged lapel microphone with in-line acoustic tube earphone featuring a micro speaker-transducer. NOW CAN BE UPGRADED TO QD (Quick Disconnect) Version. Pryme SPM-3000, SONIC, Medium Duty Lapel Microphone. Rugged lapel microphone with in-line acoustic tube earphone featuring a micro-speaker-transducer (sometimes called a "Bullet Transducer"). Heavy-duty cable with a strong polyurethane jacket and superior strain relief, polycarbonate housing, dual switch technology. The micro-speaker and short (no coil) acoustic tube are very light and comfortable. The short, straight acoustic tube does not plug up with dirt and oils as much as coiled type tubes. Easy to clean. Compatible with all our ear tips including Buds, Semi-custom Ear molds, COMPLY Tips and P-NAP (Noise Protection) Kits.