- Brand: Bang & Olufsen - Model Name: Beoplay EX - Waterproof Rating: IP57 - Playtime: Up to 20 hours - Bluetooth Version: 5.2 - Package Contents: Box, instruction manual, charging case, earphones Thank you for viewing. I purchased these about 3 years ago and used them daily. The battery life is about 2 hours. I feel that the volume has become slightly quieter than when I first bought them. As you can see in the photos, there is overall wear and tear, but they are still usable. Thank you.