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Amazon.com: Kinivo BTH240 Bluetooth Headphones with BTD-400 USB Bluetooth PC Adapter (Black, Bluetooth 4.0, Compatible with Windows, Raspberry Pi, Linux, On-Ear, Hands-Free Calling, Built-in Mic, Foldable) : Electronics
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Cable Matters Bluetooth 4.0 Low Energy USB Adapter for Windows 8.1/8/7/Vista/XP in White - Walmart.com
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Kinivo BTD 400 Bluetooth 4.0 USB Adapter – For Windows XP/Vista/7/8/8.1, Compatible with Bluetooth Stereo Headset and other Bluetooth Devices | Ducoup.co.uk
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Amazon.com: Kinivo USB Bluetooth Adapter for PC BTD-400 (Bluetooth 4.0 Dongle Receiver, Low Energy) - Compatible with Windows 11/10/8.1/8/7, Raspberry Pi, Linux, MacOS, Laptop & Headphones : Electronics
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