The Notification Bar Pro for Magento 2 allows creating an unlimited number of promotions banners and insert it at any page and position. Comes with a bunch of features such as the ability to create any number of notification bars, promo banners and groups, eight predefined positions, flexible notifications placement, responsive for mobile devices, notification bars statistics, multiple customization options, and more.

Check more details here : https://www.ulmod.com/notification-bar-for-magento-2.html