The seller sends a trimmed model. The model Dyson v12 detect slim absolute is listed both in the description and while purchasing the product; nevertheless, what you will receive is a Dyson v12 slim absolute. Despite what the vendor may suggest, these are a whole different model than the one I purchased. Where it is available, model Detect It has a particle counting sensor built in, and it can automatically alter the power level based on the amount of pollution in the air. On the model, there is no such thing as Detect if it is not present.