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Turn your old speakers or Hi-Fi into Bluetooth, Airplay and Spotify receivers with a Raspberry Pi and this step-by-step guide
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How to convert an old speaker system into a Bluetooth wireless speaker using Bluetooth adaptor 👌 - YouTube
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Amazon.com: ZIOCOM [Upgrade] 30 Pin Bluetooth Adapter Audio Receiver for Bose iPod iPhone SoundDock and Other 30 Pin Dock Speakers, Upgrade Old SoundDock with 30 Pin Connector, Not for Any Cars or
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Amazon.com: YMOO B06T3 Bluetooth 5.3 Receiver,SBC AAC Bluetooth Audio Adapter for Home Stereo,100ft Long Wireless Range,RCA 3.5mm Jack aux HiFi for Speaker/Older Stereo/Amplifier from Smartphone/Tablet/Laptop : Electronics
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Logitech Bluetooth Music Receiver review: Forget the aux cord, this little box turns any stereo into a wireless music system - CNET
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Connect Hub Universal Dual Headphone and Speaker Bluetooth Audio Transmitter and Receiver for TV with aptX Low Latency
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Amazon.com: Giveet Bluetooth V5.3 Receiver for Home Stereo, Wireless Audio Adapter for Speaker/Home/Car Stereo Music Streaming Sound System, Support 3.5mm AUX RCA Jack, 20 Hours Playtime, Dual Devices Connection : Electronics
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