SoundSport Wireless Headphones.

StayHear tips are designed for your comfort and stability, with a soft silicone material and a unique shape that sits gently in your ear
Bluetooth and NFC pairing so you can connect to your devices wirelessly
Volume-optimized EQ gives you balanced audio performance at any volume
Sweat and weather resistant for rigorous workouts
Lithium-ion battery delivers up to 6 hours per charge