Jawbone, a maker of headsets and a fitness-tracker product, is in the process of raising $250 million in a deal that would value the company at $3.3 billion.
Rizvi Traverse Management, the New York private-equity fund known for its investments in microblog site Twitter and payments service Square, is leading the round, the source said.
San Francisco-based Jawbone last raised $90 million in debt plus $20 million in equity in September. Not including the latest round, investors have poured around $370 million into the business, known for its wireless speakers, headsets and its wristband fitness-tracker, Up.
A spokeswoman for Jawbone did not immediately respond to a request for comment.
Existing backers include Andreessen Horowitz; Kleiner Perkins Caufield & Byers; Khosla Ventures; and Sequoia Capital.
The news was first reported by the online news site Re/code.
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