IP67 Waterproof & Dust Proof Speaker Microphone with Emergency Button #9E – This speaker mic. is a perfect size and weight for a wide variety of users. This speaker mic. is a great size and is nice and smooth to the hand. Rugged enough to be totally submerged in water and tough enough to withstand years of wear and tear. Public safety or industrial use is no problem for this speaker mic. Made to be worn on the chest, shoulder, or over the back, as it is made with an extra-long cord to accommodate large individuals. The sound quality of the speaker is easy to hear, loud or soft and is made with a special front membrane to stop dust, sparks, and other foreign material while delivering premium crisp clear communication with the speech tuned directional microphone.