{"product_id":"klein-aesem2-slim-bluetooth-earmuffs","title":"Klein Slim Bluetooth Earmuffs (AESEM2)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/noise-level.svg\" alt=\"noise-level\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e23 dB NRR\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003ePassive hearing protection with a 23 dB noise reduction rating, in a slim profile that does not feel like a helmet.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/connectivity.svg\" alt=\"connectivity\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBluetooth 5.4 Audio\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eStream music and take calls through 32 mm drivers without pulling the earmuffs off.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/runtime.svg\" alt=\"runtime\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e50+ Hours per Charge\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eA rechargeable battery covers a full work week, and a 2.5-hour USB-C charge tops it back up.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/airflow.svg\" alt=\"airflow\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eVented Headband\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eA vented headband lets air move in hot conditions and can be worn with hats or headwear.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe Klein Tools Slim Bluetooth Earmuffs (AESEM2) combine passive hearing protection with wireless audio. These are Bluetooth over-the-head earmuffs designed for hearing protection on jobsites, in workshops and during outdoor projects, with a 23 dB noise reduction rating under ANSI S3.19-1974.\u003c\/p\u003e\n    \u003cp\u003eBluetooth 5.4 handles music and phone calls, with 32 mm audio drivers and a maximum volume capped at 88 dBA. That cap matters: the point of an earmuff is to protect your hearing, and a volume limit keeps the music from undoing it.\u003c\/p\u003e\n    \u003cp\u003eThe slim, lightweight design is the main reason to choose these over bulkier Bluetooth earmuffs. Soft foam cushions form an acoustic seal for noise reduction and a secure fit, and adjustable arms tune the fit. The vented headband allows cooling airflow in hot conditions, and it can be worn with hats or headwear.\u003c\/p\u003e\n    \u003cp\u003eThe rechargeable battery is rated for 50+ hours on a single charge, with about 2.5 hours to recharge through the included USB-C cable. The PC\/ABS housing is IPX4 rated against splashing water and rated for a 6.6 ft (2 m) drop, suitable for indoor and outdoor use. The earmuffs measure about 5-11\/16\" x 8-5\/16\" x 3-13\/16\" (14.5 x 21.1 x 9.7 cm) and weigh 1.1 lb (499 g).\u003c\/p\u003e\n    \u003cp\u003eWho should buy them: contractors, carpenters, landscapers and shop users who spend hours around loud equipment and want calls and music without earbuds under a muff.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eProtection First, Audio Second\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-aesem2_callout2.jpg\" alt=\"Klein Tools AESEM2 slim Bluetooth earmuffs providing 23 dB hearing protection around loud jobsite equipment\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eA 23 dB NRR and a volume cap keep these hearing protection first.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e23 dB noise reduction rating\u003c\/li\u003e\n          \u003cli\u003eANSI S3.19-1974\u003c\/li\u003e\n          \u003cli\u003eMaximum volume: 88 dBA\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCalls and Music Without Removing Them\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-aesem2_callout1.jpg\" alt=\"Klein Tools AESEM2 Bluetooth 5.4 earmuffs connected to a phone for calls on the jobsite\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eBluetooth 5.4 and 32 mm drivers deliver clear calls and full sound while the cushions stay sealed.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eBluetooth 5.4\u003c\/li\u003e\n          \u003cli\u003e32 mm audio drivers\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits-3\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCooler on Hot Days\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-aesem2_callout3.jpg\" alt=\"Klein Tools AESEM2 earmuffs vented headband worn over a cap outdoors\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe vented headband lets heat escape and works with hats and headwear.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eVented headband\u003c\/li\u003e\n          \u003cli\u003eAdjustable arms\u003c\/li\u003e\n          \u003cli\u003eSoft foam cushions\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits-4\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eRuns All Week\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/klein-aesem2_callout5.jpg\" alt=\"Klein Tools AESEM2 Bluetooth earmuffs charging with USB-C cable\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003e50+ hours per charge means charging once a week, not once a shift.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e50+ hr battery life\u003c\/li\u003e\n          \u003cli\u003e2.5 hr charge time\u003c\/li\u003e\n          \u003cli\u003eUSB-C charging cable included\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tnincluded-wrapper\"\u003e\n      \u003cul\u003e\n        \u003cli\u003eSlim Bluetooth earmuffs\u003c\/li\u003e\n        \u003cli\u003eUSB-C charging cable\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n\u003ctable class=\"aplusspecs\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNoise Reduction Rating\u003c\/th\u003e\n\u003ctd\u003e23 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003ctd\u003eANSI S3.19-1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003ctd\u003eBluetooth 5.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio Driver\u003c\/th\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Volume\u003c\/th\u003e\n\u003ctd\u003e88 dBA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Life\u003c\/th\u003e\n\u003ctd\u003e50+ hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCharge Time\u003c\/th\u003e\n\u003ctd\u003e2.5 hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCharging\u003c\/th\u003e\n\u003ctd\u003eUSB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIngress Protection\u003c\/th\u003e\n\u003ctd\u003eIPX4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrop Protection\u003c\/th\u003e\n\u003ctd\u003e6.6 ft (2 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePC\/ABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack and orange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (L x H x W)\u003c\/th\u003e\n\u003ctd\u003e5-11\/16\" x 8-5\/16\" x 3-13\/16\" (14.5 x 21.1 x 9.7 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e1.1 lb (499 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n    \u003c\/div\u003e\n  \n\u003c\/details\u003e\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eConstruction\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eLandscaping\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eDIY \/ Hobbyist\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003eSlim Muffs That Still Play the Game\u003c\/h3\u003e\n    \u003cp\u003eThe Klein Tools Slim Bluetooth Earmuffs (AESEM2) put 23 dB hearing protection, Bluetooth 5.4 and 50+ hours of battery into a slim muff.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Anyone wearing hearing protection for hours who wants calls and music without earbuds.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e Slim profile, vented headband and a battery that lasts the week.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is passive protection, not active noise cancelling. The 23 dB NRR comes from the cushions and cups.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is the noise reduction rating of the Klein AESEM2?\u003c\/strong\u003e 23 dB, tested to ANSI S3.19-1974.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHow long does the battery last?\u003c\/strong\u003e Klein rates it for 50+ hours on a single charge, with a 2.5-hour recharge.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAre they water resistant?\u003c\/strong\u003e They are rated IPX4 against splashing water.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCan I wear them with a hat?\u003c\/strong\u003e Yes. Klein says the vented headband can be worn with hats or headwear.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Klein Tools","offers":[{"title":"Default Title","offer_id":54244565549350,"sku":"AESEM2-KLE","price":79.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/aesem2.jpg?v=1793303313","url":"https:\/\/www.toolnut.com\/products\/klein-aesem2-slim-bluetooth-earmuffs","provider":"Tool Nut","version":"1.0","type":"link"}