I have read most of the info about this topic, the buyer showed me this link.
Thanks very much for all of you try to solve the problem for the buyer who bought this product from foxoffer.
About the buzzing sound, the manufacturer told me before, it will happen if there is no enough power.
The buyer told me "A video can accompany the 'buzzing' or 'humming' noise associated with the camera. After resetting, and re-configuring the unit, it 'appears' to be working properly."
And ask $20 refund to bank account. We'd like to refund $10 and ship the missed hard wire kit by our mistake.
At last the buyer required full refund and shipping label. No problem for full refund after received tracking number and pay shipping cost after received the package.
But as a seller from China, I want to share some info.
1. About the refund, we can not refund to bank account, can only refund to paypal account.
2. About the return shipping cost, we can not provide shipping label(I think it can be provided in USA), but if we agree to pay the return shipping cost, definitely we will pay it after received the returned products.
Just received below info from buyer, also received negative feedback on ebay. it seems it is a very bad transaction for us.
![Frown :( :(](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)
"We have filed a complaint with our bank card. Again, we have no intention of sending "defective" merchandise back, as paying postage. I wish a total refund in the amount of $92.99. If you are unwilling to refund my money, including shipping costs, then just say so. This conversation is ended."