Before we ship the box we make sure that is % 100 no issue with it. We provide a video showing how the box work and what channels. Please make sure that you know what is loolbox before purchasing. Return only within 7 days of the purchase date buyer pays for return shipping cost. Make sure to return the box with the original packaging. After 7 days returns are subject to a % 25 restocking fee. After 30 days no return will be accepted.