Twitter launched a new ad-targeting feature to allow marketers to reach a specific audience segment.

Called “partner audiences,”  this rollout can also be combined with look-alike targeting, giving marketers the ability to expand the reach of their campaigns to people who have interests similar to those in their partner audience, a Twitter blog post writes.

The blog post offers a few examples:  “By using a partner to provide the desired audience, an auto brand can connect with audiences that are in-market for a new car. A CPG company can reach customers that have previously purchased products in their category. And luxury brands can limit campaigns to shoppers who earn a household income above a certain threshold.”

Advertisers  can select more than 1,000 partner audiences from Acxiom and Datalogix directly in the Twitter Ads page.

But this product isn’t available to those outside the U.S., as the blog writes, “Partner audiences are now available to advertisers running campaigns in the U.S.”