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Amazon.com : Garmin HRM-Dual Heart Rate Monitor Bundle with 5 Extra Batteries (6 Items) : Sports & Outdoors
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Magene H64 Heart Rate Monitor Chest Strap - Ant+ and Bluetooth 4.0 Compatible - Fully Adjustable Strap - Works with Peloton, Garmin, Wahoo & More - iPhone & Android Compatible - Walmart.com
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