Harmon Kardon Onyx Mini Review
Bottom LineThough the MSRP is much higher, the Harman Kardon Onyx Mini can often be found for $100 or less, and it blows away the competition at that price. This little black disk sounds good, plays loud enough to fill a room, lasts up to 10 hours on a single charge and even works as a speakerphone.Pros
  • Impressive volume
  • Compact
  • Handy speakerphone function
  • Good battery life
Cons
  • Can't match pricier speakers' sound quality
  • Pricing can vary widely
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