Asus has unveiled a mouse designed to complement its scented laptops. The Fragrance Mouse features a light-duty mousing layout with two buttons and a scroll wheel. Its unique feature lies in the refillable vial compartment on the underside, allowing users to load essential oils of their choice. The mouse connects wirelessly via Bluetooth or a 2.4GHz wireless USB dongle, offering adjustable DPI settings and powered by a single AA battery. Pricing details have not been confirmed.
Source: https://www.theverge.com/news/617917/asus-fragrance-mouse-essential-oils-vial-wireless-dongle-bluetooth