Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker | $100 | Best Buy via eBay
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Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker | $100 | Best Buy via eBay

Harman Kardon makes a lot of terrific audio products, and right now you can get this Onyx Studio 4 Portable Bluetooth Speaker for just $100. This speaker offers up room-filling sound and will last up to 8 hours of playtime unplugged. This current price is $70 off its regular going rate.