From OHOM, the Jun Self-Heating Diffuser: "Add a fresh, inviting scent to any room with this handcrafted ceramic diffuser set that only needs a little water and a few drops of oil to create an aromatic sanctuary. The diffuser holds 5 oz. and comes with a special charger that uses induction energy to heat up the metallic layering on the bottom of the diffuser. And as an added bonus, the warming base doubles as a wireless phone or earbud charger." Shown in Moonmist Blue, $98 at Nordstrom, where you'll also find it in 6 other colors.