Hello, we sell high quality products. Please check the model before purchase, and each product must pass three strict inspections before leaving the factory to ensure product quality. Since electronic products are easily damaged during transportation (irresistible factors caused by violent transportation), please check them carefully after receiving the package. If you find the product damaged or incompatible or not satisfied, please do not open the return request, you can contact us privately, we will do our best to solve, thank you very much.