Customers who purchase from our company enjoy the following gaurantee：

1. Guarantee all the products we sell are original and new without any refurbished, or remarked.

2. Within 30 calendar days after the shipment, the goods purchased from DZB  can be exchanged or returned without any explanation to receive total refund.

3. Between 30 to 90 calendar days after shipment, the goods purchased from us can be exchanged or returned in case of quality problems by providing the test document from official test centre.

4. Offer 365 days warranty.