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Special Features

  • 🎶【Compatible Model】: This Harman Kardon Onyx battery replacement compatible with Harman Kardon Onyx Studio 1, Onyx Studio 2, Onyx Studio 3, Onyx Studio 4 Bluetooth Speaker.
  • 🎶【High Quality Assurance】: Our upgrade Harman Kardon Onyx replacement battery has UL,CE and Rohs certification, uses Grade A+ rated battery cells. Every battery is manufactured and tested under strict quality control standards. Build-in microchip to prevent over-charging, over-discharging, short-circuit and over-heating. Multiple-protection for safer operation for both user and devices.
  • 🎶【Long Battery Life】: This upgraded Harman Kardon Onyx high capacity battery, battery type: Lithium Polymer, Battery Capacity: 4200mAh, Watt-hour: 15.54Wh, Voltage Output: 3.7V. Brand new 0 cycle,built to last up to 2000+ charging cycles to provide longer battery life.Item including: 1 x high capacity battery, 1 x with repair tool kits.
  • 🎶【Use Instructions】: Using up all the power of battery for the first three times before charging, and then take a full charge, thus the battery can be reached the optimum effect of using. Please remember that its full performance and longevity is only achieved after 8 to 10 complete charge and discharge cycles.
  • 🎶【After-sales Service】: If you are not satisfied with our product, please contact our friendly customer service through the "Contact Seller" feature, we will reach out to you within 24 hours, solve your problem quickly and efficiently.

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