Adapted to Xiaomi 4pro characteristic 1. The equipment are sturdy and simple to install, making your purifier more durable. 2. Maintain the cleansing performance of the purifier while lowering dust,pollen and assorted allergens from getting into the air you breathe. Notice 1. These aren't genuine/original products, we endorse compatible replacement products. 2. The color may even be diversified because of varied displays, thanks on your understanding. 3. If there is a challenge with the order and understand your unpleasantness, please touch us and we are able to attempt our best to offer you a passable result.