PowerBeats Pro Replacement Right Bud Only (A2454). Black version.

Features:

• Totally wireless high-performance earphones
• Up to 9 hours of listening time (more than 24 hours with charging case)
• Adjustable, secure-fit ear hooks for lightweight comfort and stability
• Reinforced design for sweat & water resistance during tough workouts or running
• Volume & track controls on each earbud, voice capability, and auto play/pause