Marin Software now supports Google Device Bid Adjustment for Campaigns and Groups for customers with Adwords accounts opted in by Google. If Google opted in your AdWords account, please contact your customer service representative to enable this feature in Marin. We support this feature in bulk add/edit, multi-edit and single add/edit. Though you may see these features in UI, they will not function unless we enable your client account in Marin. Each device bid adjustment supports a range is -100, -90 through 900%.