X15 wireless headset adopts OT closed anti-leakage technology 3.0 and a 360° fully enclosed cavity to minimize sound leakage. Siniffo Bone Conduction Headphones, 2023 Upgraded Bluetooth 5.3 Wireless Headphones, Open-Ear Sports Earphones with Mic, Waterproof Wireless headset for Workout, Running, Gym, Hiking, Driving, Cycling.
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