Warranty Policy

Warranty Policy:

There will be 4/6 months official replacement warranty only on Buds 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.
• If you find any damaged product inside the box please inform us MUST on receiving date with unboxing video.
• Invoice, Box, Warranty Sticker & other accessories of the earphone must be returned during claiming the warranty.


• What Covers under Warranty:

o No Sound Output

o Sound Imbalance


• What Not Covered under Warranty:
o Wear and Tear

o Cosmetic Flaw

o Breakage of Wire

o Accumulation of Earwax on Earphone’s Nozzles Filter.

o Any kind of Physical damage

o Vaccume Tube issues

o IF KZ HQ Bankrupt

– Note: The Earphone may need to restart after long listening.

– No Refund & No Exchange

– Keep Unboxing video for proofing physical damage while receiving from delivery man.

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

Contact Info

Copyright © 2026 | kZ Bangladesh . All Rights Reserved

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