Pura v3 Home Plug-in Diffuser. The Pura diffuser plug in allows you to customize your aroma experience from the convenience of your smartphone. Adjust the scent intensity, set custom schedules, and swap between scents within the Pura app. The Pura smart plug diffuser does require a Wi-Fi connection for setup and operation. The diffuser plugs into any 110V AC outlet and does not require batteries. Diffuser: 3.86"W x 1.95"W x 1.95"D. SCENTS NOT INCLUDED but I have a listing for a brand new Frasier Fir refill if you’d like to make your own bundle!