1. Warranty Scope and Period

Warranty Start Date: Calculated from the date the customer receives the product (based on the invoice, warranty card, or electronic warranty activation info).

2. Replacement Policy

• 1-to-1 Replacement within 7 Days: Free replacement with a new unit within the first 7 days if the product experiences a technical defect caused by the manufacturer (photo or video evidence required).
• Unit Replacement or Refund: If a product undergoes warranty repair 3 times or more during the warranty period and the defect persists, or if repair exceeds the committed timeframe, ZANSONG will replace it with a new unit or issue a refund.
• Replaced new products will have their warranty period reset from the replacement date. Replaced parts/components will have their warranty reset from the date of replacement.

3. Warranty Process (4 Steps)

During the warranty period, ZANSONG offers temporary loaner units (subject to stock availability) for customers relying on the device for work (e.g., tour guides, sellers, streamers) to prevent work interruption.

Cost: ZANSONG covers all two-way shipping fees and repair costs for products covered under warranty.

4. Warranty Exclusions

• Products past the warranty period.
• Products lacking proof of purchase, or with torn, erased, or altered warranty seals/serial numbers.
• Damage caused by drops, impacts, physical deformation, scratches, or cracked casings.
• Damage from water ingress, moisture, rust, or insect intrusion (except for models with certified water-resistance specifications).
• Use of incorrect voltage, non-compliant chargers, or failure to follow the user manual.
• Unauthorized disassembly or repair by customers or non-authorized service providers.
• Accumulators or batteries damaged due to prolonged deep discharge without recharging, or charging with incompatible devices.
• Natural wear and tear: wind-muff foam, speaker grilles, carrying straps, protective covers, audio jacks, or paint finish.
• Damage caused by natural disasters, fires, or unstable power sources.

For issues resulting from improper operation, technicians will provide re-instruction free of charge. Out-of-warranty products are still eligible for repair and component replacement at a reasonable fee (a price quote will be provided beforehand).

5. Tips for Long Battery Life

• Fully charge before the first use.
• Recharge within 24 hours after depletion; do not leave the battery completely dead for prolonged periods.
• If unused for long periods, perform a maintenance charge every 1–2 months.
• Do not leave the device in direct sunlight or inside a sealed vehicle.

6. Complaint Handling & Resolution

ZANSONG will acknowledge receipt within 03 working days of receiving a complaint and communicate the resolution outcome according to the promised timeline.

Contact Channels:

• Warranty Hotline: [Hotline Number] (Business hours: [8:00–17:30, Monday – Saturday])
• Zalo/Fanpage: [Link]
• Email: [Support Email]
• Warranty Center Address: [Warranty Center Address]

Process: Receipt → Classification & Verification → Proposed Solution → Customer Notification → Execution & Final Feedback.

This policy applies to original ZANSONG products purchased through official channels and authorized dealers. ZANSONG remains fully responsible for warranty commitments to customers, even when authorizing third-party service centers to fulfill them.

03:47:26 query returned open=false
03:50:49 query returned open=false
04:28:40 query returned open=false
04:52:24 query returned open=false