T-Mobile's self-proclaimed vocal, animated, and sometimes foul-mouthed CEO has apologized to the Electronic Frontier Foundation for last week's less-than-professional behavior.

John Legere on Thursday published an expletive-laden blog post and video defending the company's Binge On feature, which the EFF claims throttles all video.

Now he is backtracking on those comments, saying that while T-Mobile and the EFF don't agree on all aspects of Binge On, that "doesn't mean I don't see how they fight for consumers."

"We both agree that it is important to protect consumers' rights and to give consumers value," Legere wrote Monday in an open letter. "We have that in common, so more power to them."

EFF recently published a report that says T-Mobile throttles all HTML5 video streams to around 1.5Mps, even when a phone is capable of downloading at higher speeds. The study also says T-Mobile's video "optimization" does not alter or enhance the mobile stream, as advertised.

Legere hit back at the Foundation with what he called "color commentary," asking "Who the f**k are you, anyway, EFF?" and contending that the nonprofit is using net neutrality as a jumping-off point to make headline news.

Taking the weekend to sleep on it, Legere returned to the Web on Monday, apologizing for his unfiltered remarks, and hoping to clear up some confusion about Binge On.

"Binge On is a FREE benefit given to all T-Mobile customers," he wrote in his blog post. "It is and always has been a feature that helps you stretch your data bucket by optimizing ALL of your video for your mobile devices" and streaming content in 480p or higher.

Highlighting the company's "VERY 'pro' net neutrality stance," Legere reminded subscribers that Binge On can be turned on or off at any time. "I'll keep shooting my mouth off periodically," Legere added, but said "we look forward to sitting down and talking with EFF" in the near future.