Headphones Pro (2nd Gen) Bluetooth Earbuds - The ultimate wireless sports earbuds for workouts and all uses with no cables but lots of technology. , the enhanced equalizer and exclusive ergonomic design deliver crisp, perfectly balanced sound at any volume. It works on a good wireless signal and makes powerful perfect sounds Made of the strongest materials. Always enjoy the best sound no matter where you hold your phone: in your hand, in your pocket, in your arm or in your gym bag