The Used Speaker Mic PMMN4013A is a remote speaker microphone designed for Motorola walkie talkies, including models such as CP200, PR400, CP150, and BPR40. It features a 3.5mm audio jack, 2-pin connectivity, and a clip mount for easy attachment. The microphone offers noise cancellation and water-resistant capabilities, making it ideal for various communication needs. With a 1-year manufacturer warranty and being MSHA HAZLOC capable, this US stock product is a reliable option for those in need of a high-quality speaker mic for their Motorola devices.