Hideez USB Bluetooth Adapter for Windows, macOS, Linux, Raspberry Pi
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Amazon.com: QOFOWIN USB Bluetooth Receiver Adapter, Wireless Audio Adapter Car Kit Music Receiver for Home Stereo/Car Stereo Sound System Speakers with 3.5mm Cable.(Aux in) (Yet-M1). : Electronics
Amazon.com: Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Compatible with Windows 11, 10, 8.x, 7, Classic Bluetooth, Gamepad, and Stereo Headset Compatible) : Electronics
Amazon.com: ZEXMTE USB Bluetooth Adapter 5.0 Bluetooth Dongle Bluetooth Receiver for PC Windows 10/8/7 for Desktop, Laptop, Mouse, Keyboard, Headsets, Speakers : Electronics
Kinivo BTD-400 Bluetooth 4.0 Low Energy USB Adapter - Works With Windo
Tripp Lite Mini Bluetooth USB Adapter 4.0 Class 1 164ft Range 7 Devices - network adapter - USB - U261-001-BT4 - Wireless Adapters - CDW.com
Amazon.com: USB to Bluetooth Convert Adapter USB2BT Assembly Kit Japan Import : Electronics
Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits