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MakerHawk Mini Amplifier Board Bluetooth Amplifier 2.0 2X50W 5V-24V Audio Power Amplifier Module for Store Home Theater Speakers
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Amazon.com: Arylic WiFi & Bluetooth Receiver Audio Preamplifier Board, Wireless Multizone Home Stereo Music Circuit Module with Airplay,Spotify Connect and Remote Control for DIY Speakers-Up2stream Mini V3 : Electronics
