Technically 33ft, but I believe the range is closer to fifty feet.
I can set my phone next to a 1/16 mile indoor track at the gym I go to and run the track for my entire workout and not loose a beer. Also, I can put my phone in the back pocket while riding outside with a perfect connection. For some reason I've found a lot of other Bluetooth earbuds that will skip with your phone in the back pocket.