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Jaybird X4 Wireless Bluetooth In-Ear Headphones with Microphone, For Sports, Running and Fitness, Customisable EQ, Rechargeable, 8 Hour Battery Life, Smartphone/Tablet/iOS/Android - Black Metallic: Amazon.co.uk: Electronics & Photo
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Amazon.com: Jaybird X3 In-Ear Wireless Bluetooth Sports Headphones – Sweat-Proof – Universal Fit – 8 Hours Battery Life – Alpha : Electronics
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