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『
Appendix I Product Warranty Card
』
Please fill this form and send it back to us along with the product needs service.
Product
QA890 Hi-Fi Audio DAC
S/N
Date
User Name
Zip Code
Mobile
Tel
Address
Customer
Feedback
Cause Analysis
and Solution
（
This part is filled by the manufacturer
）
Remarks
Company:
ShenZhen QLS Electronic Technology Co.,Ltd
（
Quloos
）
E-mail:
Web:
