A device for diffusing volatile substances includes a container for the volatile substances, a diffuser configured to diffuse the volatile substances, and at least one battery configured to supply energy to the diffuser. The device also includes a controller detecting data from at least one of the components of the device and determining the period of time during which the at least one battery supplies energy to the diffuser according to the data. This device allows the yield and efficiency to be improved, provides the desired products, and reduces consumption of the batteries.