MHW-341-F-IVC: Completely sealed dust and corrosion protected surface mount stainless steel telephone with impenetrable magnetic hookswitch incased in housing. Operates as a standard dialing telephone. Equipped with a marine quality chrome metal tone dial keypad, 32" hearing aid compatible magnetic handset, (-IVC) internal volume control via volume control button with loudness symbol and background noise minimization, and steel mounting backplate.