Product Features:
?1.Small and light-weight
?2.Manual control ensure microphone only when needed
?3.High-performance bone-conducting earphones and microphone to deliver sound in the most demanding environment
?4.Capture and deliver sound vibration through contacting onto the top of head, with gentle pressure
?5.Unique belt and lock design ensure perfect fit to any respiratory masks including MSA F1 and F2 etc…
?6.Ideal solution for mask-wearing military, police, fire ambulance service, security service etc…