Below is our guarrenty policy of our website:

every product we sell will have a mark sticker in main unit. If product with this sticker, that means the item before send out is in a good condition. then we will provide guarantee for this item.
But one thing you have to pay attention, if the product do not have quality problem, we do not accept returns. if this product encounter broken during shipping, we can exchange for you.
As we test every product, so the product will be in good condition before send out. if customer need repair, customer will have to pay the shipping fee to send it back to us, we will undertake the shipping fee to send it back.

Any problems, please contact us online service or email to sales@bobd2.com