The PMLN7465 headset is built for UL/intrinsically safe environments. This product is the replacement for discontinued item PMLN5731.
Heavy Duty Over The Head Headset, Noise Canceling with Boom Microphone, Inline PTT
Motorola often changes the product SKU name. This product may have also been known as PMLN7465a, PMLN7465b, PMLN7465c, PMLN7465d, PMLN7465e, PMLN7465f, PMLN7465ar.