I also use the theater ears app. It's excellent!!!! It synchronizes through the microphone of your phone with the track of the movie, it only works inside the movie theaters, for that use your location.Download it in the play store and follow the steps.
No but there is a new app that I recommend a lot is free and you just need your cell phone and good headphones called TheaterEars.com ... I have seen almost all but scary and the sound is excellent.
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