Reviews: Do these earbuds fall out of your ears easily or not? I am looking for earbuds that don't fall out of my ears when I walk or exercise.

Allfei: If you use the correct size ear pieve you should be fine. I weAR mine when I run (about 5 miles) and have not had any issues. ( Jan 30, 2017 10:36 )

Reviews: What version of bluetooth is it?

Allfei: Bluetooth 4.0 device ( Dec 11, 2016 13:53 )