PMMN4102 Motorola Radio Speaker Mic with IMPRES and Windporting tech ensures superior audio in challenging conditions. Built to withstand immersion and dust, it features volume control, emergency button, and programmable button for quick access. The Active Noise Cancelling (ANC) capability enables clear communication in harsh environments. With intrinsic safety approvals, it's suitable for hazardous settings. Equipped with two audio jacks, it supports discreet earpieces and third-party headsets for versatile use.