Last year Bing Ads had announced device targeting by adding desktop as an option. Now they have expanded device targeting by adding mobile-only support by adding negative desktop bid modifiers.
Advertisers can now choose to completely opt out from displaying ads on desktop. The new range for Desktop is now in line with the rest of the devices at -100% to +900%.
The new feature will be available through Bing Ads Web Interface, Bing Ads Editor, and Bing Ads API.
This update is being rolled out globally and some customers have started seeing it already, and all customers across the globe will be able to use this feature in coming weeks.
Advertisers can import their device bid adjustment in to Bing Ads from Google AdWords.