Yaesu SSM-21A Submersible Speaker Mic

The Yaesu SSM-21A is a submersible and intrinsically safe rated speaker mic with heavy duty belt clip for Yaesu and Standard Horizon Marine Radios.  The SSM-21A can be submerged under water up to 9 feet deep for 30 minutes and features a swivel belt clip for comfortable wearing.  The Yaesu SSM-21A is the direct replacement for Yaesu SSM-14A Speaker Mic.