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Amazon.com: Conduction Labs - Allegro - Open Ear Bluetooth Headphones - Waterproof Bone Conduction Wireless Headset - Cycling & Running Headphones - Black : Electronics
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Amazon.com: Conduction Labs - Allegro - Open Ear Bluetooth Headphones - Waterproof Bone Conduction Wireless Headset - Cycling & Running Headphones - Black : Electronics
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Conduction Labs Allegro open-ear headphones use directional audio technology for safety » Gadget Flow
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