Portable Aroma Diffuser. It is an elegant, portable aroma diffuser that is easy to carry and use. It is used for cars "The device size is suitable for the cup holder in most cars", and it is also suitable for offices and small spaces. The device covers up to 9 square meters. It is charged via the included type c charging cable. Comes with the device are three bottles of BALMY's distinctive oil perfumes "Each bottle contains 10 ml", the perfumes are (Balmy 1 , Balmy 2 , Balmy 3). Description of Balmy perfumes:- Balmy 1: Inspired by Good Girl by Carolina Herrera. Balmy 2: Floral Musk Balmy 3: Inspired by Qissa by Imperial Valley. Warranty: Two years on the device for any manufacturing defects, and the warranty does not cover misuse.