The HAWK microphone with push-to-talk button is sensitive to a whisper. The adapter provides a push-to-talk button. The kit comes equipped with the clear acoustic audio tube, left and right medium rubber earmolds and our newly patented Torpedo earbud. It is extremely durable and, of course, includes a one-year, no-questions-asked warranty. Excellent audio quality Concealable and lightweight Microphone is sensitive to a whisper Polyurethane-jacketed Kevlar cables Easy-to-grip PTT EP1311QR: KENWOOD - Nexedge NX200, NX300, NX210, NX410, TK190, TK200, TK280, TK290, TK380, TK390, TK480, TK481, TK2140, TK2180, TK3140, TK3180, TK5210, TK5220, TK5310, TK5320, TK5400 EP1333QR: MOTOROLA - GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP650, GP680, GP960, HT1250, HT1250LS, HT1550, HT1550XLS, HT750, MTX8250, MTX8250LS, MTX850, MTX850LS, MTX9250, MTX950, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150, PTX-700, PTX760, PTX780