Harman Kardon Onyx Studio 4 Bluetooth Speaker $150 at Best Buy $150 $450 Early Black Friday Sale. Best Buy has the Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker, 2017 model (Black) on sale for $150 with free shipping. Has built-in mic with Voicelogic, noise/echo cancellation and 8-hour playback time on a single charge. $150 retail: $450 Report Posted by Sharik11/19/2017 at 12:32 AM PT
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