Large IMPRES Remote Speaker Microphone with Volume control, IP68

RSM is approved to IP68 meaning it can withstand immersion for extended periods and is completely dust tight. This RSM is fully populated with controls, featuring volume control to change the level of received transmissions, an emergency button to signal distress and request assistance, and a programmable button to put you favourite features directly at your fingertips. This RSM also features a 3.5 mm audio jack that allows you to connect a receive-only earpiece for discreet communication.