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Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: CME WIDI Uhost - Bluetooth USB MIDI Interface + USB host for Class Compliant USB MIDI Instrument, MIDI Controller, MIDI Keyboard, Windows, Mac, iOS & Android, Linux, ChromeOS : Musical Instruments
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