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if you have any objection to the quality after receiving the product, please contact us within 7 days after receiving the product. Set Top Box TV Box TV S905X4 Android 11 Set-Top Box Dual Band WiFi Bluetooth Network Player Q241004 buyers can return item(s) for a refund within 7 days from the day the item(s) were received, and the buyer is to afford the return shipping cost.the product have slight threads and a slight color difference in different lighting, it is normal.this size data in the clothes laid flat under the manual measurement obtained, due to different measurement methods, the error within 1-3cm is normal.