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Warranty Policy


  • There will be 2 - 6 months official replacement warranty only on Earbuds for wired earphone
  • No warranty on Wired Cable & Accessories
  • 2-4 months warranty on Bluetooth cables & Earhook.
  • 4 months warranty on TWS/Bluetooth earphones.
  • Replacement warranty can be claimed for ONCE later service warranty will be provided.
  • Customers will pay the Courier Charge for warranty claimed
  • Official Seal or Sticker cannot be removed from the box.
  • Any kind of alteration will be void the warranty
  • Refund only applicable if any misunderstanding (time inside Dhaka 1 day & Outside Dhaka 2 days) but change of mind is not applicable .
  • Invoice, Box, Warranty Sticker & other accessories of the earphone must be returned during claiming the warranty.



About Us

KZ (Knowledge Zenith) is the Chinese Earphone manufacturer. Open Source is the official distributor in Bangladesh. Open Source maintains this website (KZ Bangladesh).
Copyright © KZ Bangladesh

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