This product is an integrated design of MP3 player and rear-view mirror, with fashionable appearance and easy installation, it can be used directly instead of the original rear-view mirror.Wherever on the road, waiting, recreation, outings and activities, it always gives us a lot of fun. It doesn t only enrich people's lives, but also meet the needs of many musical lovers.Before you use this product, please read this manual carefully, which will tell you the product s features and installing methods, so that you will use it more easily and conveniently.