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Bose headphones track what users listen to and sell the data, according to a lawsuitby Circa News
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Bose is one of the most famous names in headphones. But a new lawsuit claims the company spies on users with a companion app for many of its most popular headphones.

The lawsuit says Bose records what users listen to and provides that information to third parties using the Bose Connect app. Lead plaintiff Kyle Zak argues that can violate a person's privacy, since audio history can contain personal topics like podcasts about LGBT issues or religious teachings. 

Zak said a Bose sold data to a San Francisco company called Segment, which offers to "collect all of your customer data.

The lawsuit says the complaint is worth $5 million, but doesn't specify damages. Bose did not respond to Fortune's request for comment on the complaint. However, the app does allow customers to use headphones without the app. Bose Connect gives more controls and settings for audiophiles (to whom most Bose headphones are marketed) to tinker with.

"Companies need to be transparent about the data they take and what they are doing with it ..."

Jay Edelson, privacy lawyer

It's not the first time a seemingly offline device has illegally collected information. Last month, sex to maker We-Vibe had to pay $3 million for illegally collecting user data.

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