The Harman Kardon Onyx Mini is a compact, full-featured bluetooth speaker streaming powerful sound. It embodies the iconic Harman Kardon design language and is finished with high-end materials. Thanks to an integrated rechargeable battery, you can enjoy music wirelessly for up to ten hours. A built-in noise and echo-cancelling microphone delivers clear phone calls over the speaker. The wireless Dual Sound function allows you to connect with another Onyx Mini or Harman Kardon compatible speaker for an amplified sound experience.