DA Diffuser 300 (BT)OUR NEWEST MOST VERSATILE WAY TO DIFFUSE YOUR FAVORITE PERFUME Don't have a central ventilation system (HVAC)? Dont want to perfume your entire home, store or lobby? Have a shared office? Look no further. Our DA 300 Diffuser can be either placed on a table or shelve, or can also be hanged from the wall for added efficiency. By using batteries, it can be placed practically anywhere as there is no need to be near a plug. Controlled with your phone!