What it is: A diffuser that allows you to customize your scent experience with premium fragrances from the convenience of your smartphone.What it does: Simply plug in, program and let the clean, thoughtfully curated fragrances enhance your every mood. With Puralast™ technology, the smart vials work with your diffuser to account for the size of the room and your desired intensity to intelligently scent your space for up to 120 hours. You can control your Pura device remotely from your smartphone anywhere at anytime. The device runs only when you want it to, and you can choose a 1-10 level intensity for a weaker or stronger scent. It holds two fragrances at once, so you can swap out which scent you want to fill the room. It also doubles as an ambient nightlight when plugged in.Set includes:- Pura 4 Smart Fragrance Diffuser- Volcano Fragrance Refill (0.33 oz.): the perfect blend of tropical citrus and yummy sugary notes, like the excitement and energy of a summer beach rendezvous- Tinsel & Spice Fragrance Refill (0.33 oz.): a festive blend of juniper berry, cinnamon and clove with a twist of orange mandarin, vanilla and forest woodsHow to use: Download the Pura app to your smartphone, follow the onboarding steps in the app and enjoy your scent experience. Set up personalized schedules and enable geofencing to allow your fragrances to complement your lifestyle and last longer. Optimize your experience by adjusting the scent intensity and selecting your style with a smart ambient nightlight. Limited edition 9.25" x 4.75" x 3.25" Includes smart diffuser and two scents One scent will last up to 120 hours depending on the scent intensity in the app Plastic/fragrance oil Made in the USA