{"product_id":"mh-66a4b-ip57-intrinsically-safe-speaker-mic","title":"MH-66A4B IP57 Intrinsically Safe Speaker Mic","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eMotorola MH-66A4B IP57 Intrinsically Safe Speaker Mic: Submersible Voice for Hazardous-Duty VX \u0026amp; EVX Radios\u003c\/h2\u003e\n\u003cp\u003eIP57 submersible · Intrinsically safe (FM\/ATEX) · Noise-reducing mic · Glove-friendly PTT · 3.5 mm earjack · Motorola VX \u0026amp; EVX compatible\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMotorola MH-66A4B\u003c\/strong\u003e (Motorola part # AAE46X507) is a rugged, submersible speaker microphone rated IP57 and certified intrinsically safe, built for critical voice communication in hazardous and marine environments. It pairs with IS-rated Motorola VX and EVX series radios to keep audio clear and safety-approved on the toughest job sites. Browse the full range of compatible parts in \u003ca href=\"https:\/\/www.2wayradiosolutions.com\/collections\/evx-s24-accessories-1\"\u003eEVX-S24 Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eBuilt for crews running IS-rated Motorola VX\/EVX radios underground, offshore, or in chemical and petrochemical plants where submersible, intrinsically safe audio gear is required. It is not ideal for radios outside the Motorola VX\/EVX families or applications that do not need an intrinsically safe accessory. If you need a dedicated antenna for those radios, see the \u003ca href=\"https:\/\/www.2wayradiosolutions.com\/products\/atu-6d-uhf-6-inch-antenna\"\u003eATU-6D UHF 6 inch Antenna\u003c\/a\u003e. Contact us to confirm fit before you buy.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP57 waterproof and dustproof:\u003c\/strong\u003e submersible in up to 1 m of water for 30 minutes and resistant to harsh, dusty conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntrinsically safe certified:\u003c\/strong\u003e FM-approved for use with IS-rated Motorola\/Vertex radios such as the ISVX-450 and EVX-530 series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty build:\u003c\/strong\u003e durable housing, a large PTT button operable with gloves, and a coiled cord for flexible reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise-reducing mic:\u003c\/strong\u003e intelligent audio circuitry cuts ambient noise for clear voice transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5 mm earphone jack:\u003c\/strong\u003e supports optional earpieces for secure, private listening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e works with Motorola VX-261\/VX-451\/VX-454\/VX-459 and EVX-261\/531\/534\/539 (IS) radios.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMotorola\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eAAE46X507\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIngress Rating\u003c\/th\u003e\n\u003ctd\u003eIP57 (1 m for 30 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSafety Rating\u003c\/th\u003e\n\u003ctd\u003eIntrinsically Safe (FM\/ATEX with IS-rated radios)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEarjack\u003c\/th\u003e\n\u003ctd\u003e3.5 mm non-threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMic Features\u003c\/th\u003e\n\u003ctd\u003eNoise reduction, large glove-friendly PTT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003ctd\u003eMotorola VX \u0026amp; EVX series (incl. IS models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e1 year replacement (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMH-66A4B submersible speaker mic\u003c\/li\u003e\n\u003cli\u003e6 ft coiled cord with quick-disconnect\u003c\/li\u003e\n\u003cli\u003eSwivel clothing clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the MH-66A4B a Motorola or a Vertex accessory?\u003c\/h3\u003e\n\u003cp\u003eThe MH-66A4B is a Motorola accessory, Motorola part # AAE46X507. It is designed for Motorola VX and EVX series radios, including intrinsically safe (IS) models. Vertex\/EVX terminology refers to the compatible radio lines, not the product brand.\u003c\/p\u003e\n\u003ch3\u003eWhat radios is the MH-66A4B compatible with?\u003c\/h3\u003e\n\u003cp\u003eIt works with Motorola VX-261, VX-451, VX-454, and VX-459, plus EVX-261\/531\/534\/539 (IS) radios, and is rated for IS radios such as the ISVX-450 and EVX-530 series. Contact us to confirm your exact model before ordering.\u003c\/p\u003e\n\u003ch3\u003eIs the MH-66A4B waterproof?\u003c\/h3\u003e\n\u003cp\u003eYes. The MH-66A4B is rated IP57, making it dustproof and submersible in up to 1 m of water for 30 minutes.\u003c\/p\u003e\n\u003ch3\u003eIs the MH-66A4B intrinsically safe?\u003c\/h3\u003e\n\u003cp\u003eYes. The MH-66A4B is certified intrinsically safe and FM-approved for use with IS-rated Motorola\/Vertex radios, suiting it to hazardous environments such as chemical plants and offshore sites.\u003c\/p\u003e\n\u003ch3\u003eWhat comes in the box?\u003c\/h3\u003e\n\u003cp\u003eEach MH-66A4B ships with the submersible speaker mic, a 6 ft coiled cord with quick-disconnect, and a swivel clothing clip.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the MH-66A4B a Motorola or a Vertex accessory?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The MH-66A4B is a Motorola accessory, Motorola part # AAE46X507. It is designed for Motorola VX and EVX series radios, including intrinsically safe (IS) models. Vertex\/EVX terminology refers to the compatible radio lines, not the product brand.\"}}, {\"@type\": \"Question\", \"name\": \"What radios is the MH-66A4B compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It works with Motorola VX-261, VX-451, VX-454, and VX-459, plus EVX-261\/531\/534\/539 (IS) radios, and is rated for IS radios such as the ISVX-450 and EVX-530 series. Contact us to confirm your exact model before ordering.\"}}, {\"@type\": \"Question\", \"name\": \"Is the MH-66A4B waterproof?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The MH-66A4B is rated IP57, making it dustproof and submersible in up to 1 m of water for 30 minutes.\"}}, {\"@type\": \"Question\", \"name\": \"Is the MH-66A4B intrinsically safe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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