{"product_id":"open-ear-ac311-wireless-earbuds-long-battery-clear-calls","title":"Open Ear AC311 Wireless Earbuds - Long Battery, Clear Calls","description":"\u003cp\u003eIn this review the Monster Open Ear AC311 wireless earbuds stand out as a practical choice for active listeners who want awareness and long battery life without sealing their ear canal. The biggest reason to buy is the open ear design paired with a large 16.2mm driver and ENC, which deliver clear voice calls and comfortable, noninvasive audio for running, cycling, or all-day wear. Setup and controls are straightforward, and the IPX5 sweat resistance plus up to 30 hours of total playtime make these a durable daily companion.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen ear design:\u003c\/strong\u003e Lets users stay aware of their surroundings and avoid in-ear pressure during long sessions while still enjoying music and calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16.2mm large driver:\u003c\/strong\u003e Provides fuller air conduction audio and a more satisfying stereo soundstage than smaller open-ear drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eENC for calls:\u003c\/strong\u003e Environmental Noise Cancellation improves clarity on phone calls, making conversations easier in busy or outdoor settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTouch controls:\u003c\/strong\u003e Intelligent touch design allows answering calls, switching tracks, and adjusting volume without reaching for a phone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX5 waterproof:\u003c\/strong\u003e Sweat and light rain resistance means the earbuds can handle workouts and outdoor use without worry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-hour total playtime:\u003c\/strong\u003e Type-C charging and the included case extend listening across a full day or multiple workouts without frequent recharging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe AC311 is ideal for runners, cyclists, commuters, and anyone who needs situational awareness while listening. The open ear format keeps ears free and reduces the fatigue and occlusion that comes with in-ear models, while ENC helps keep voice calls intelligible in noisy environments.\u003c\/p\u003e\n\u003cp\u003ePeople seeking deep noise isolation or the tight bass response of true in-ear or over-ear headphones should look elsewhere; this design trades isolation for comfort and safety. Also, audiophiles wanting studio-level detail may find the open ear sound signature less immersive.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComfortable nonin-ear fit that reduces ear fatigue during extended use.\u003c\/li\u003e\n\u003cli\u003eClear voice calls thanks to ENC and a large 16.2mm driver for improved vocal presence.\u003c\/li\u003e\n\u003cli\u003eLong combined battery life with Type-C charging and quick Bluetooth 5.4 pairing.\u003c\/li\u003e\n\u003cli\u003eIPX5 rating makes them suitable for sweat-prone workouts and light rain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOpen ear design limits passive noise isolation and bass depth compared with sealed earbuds.\u003c\/li\u003e\n\u003cli\u003eTouch controls can take a short adjustment period to use reliably during activity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver\u003c\/td\u003e\n\u003ctd\u003e16.2mm large driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCall tech\u003c\/td\u003e\n\u003ctd\u003eENC (Environmental Noise Cancellation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlaytime\u003c\/td\u003e\n\u003ctd\u003eUp to 30 hours total (with charging case)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater resistance\u003c\/td\u003e\n\u003ctd\u003eIPX5 waterproof and sweatproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging\u003c\/td\u003e\n\u003ctd\u003eType-C charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eOpen ear, non-in-ear format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Monster Open Ear AC311 earbuds are a smart pick for active users who prioritize comfort, safety, and long battery life over total noise isolation. With clear call handling, tactile touch controls, and an IPX5 rating, they deliver strong real-world value for outdoor workouts and commuters who need awareness and durable battery performance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo these earbuds block outside noise?\u003c\/strong\u003e\u003cbr\u003eThey use an open ear design, so they do not provide passive noise isolation; they are meant to preserve situational awareness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the battery last?\u003c\/strong\u003e\u003cbr\u003eCombined playback with the charging case reaches up to 30 hours, with single-battery duration shorter depending on volume and use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre they safe for running in light rain?\u003c\/strong\u003e\u003cbr\u003eYes, the IPX5 rating protects against sweat and light rain, making them suitable for outdoor exercise.\u003c\/p\u003e","brand":"Monster","offers":[{"title":"Default Title","offer_id":46754660843739,"sku":"B0DJM6SKY8","price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/713i3Hx5YPL._AC_SL1500.jpg?v=1747821553","url":"https:\/\/gearmusthave.com\/products\/open-ear-ac311-wireless-earbuds-long-battery-clear-calls","provider":"GearMustHave","version":"1.0","type":"link"}