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FIFINE AmpliGame H9 3.5mm Headset with USB Control Box for Mute, I/O C

For all your sports. Bluetooth and ANT+ technologies open up endless connection possibilities to any app or device you want to use.

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Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym, Cycling, Running, Outdoor Sports : Sports & Outdoors