Pryme SPM-4203ST
Tactical Kit - PRYME STORM TROOPER Water-Proof Speaker Microphone with Hi / Low Volume Control and Noise Canceling Microphone (Includes PTT-1500B Push-To-Talk Junction Box )
For HYT TC-1600, TC-500, TC-600, TC-610, TC-620, TC-700, TC-700EX radios