The Jaybird X4 Wireless Bluetooth Headphones. Black Metallic Flash version.

Features:
- 8 HOURS OF PLAY TIME Rechargeable battery provides 8 hours of bluetooth wireless play time on a 2 hour charge. Wireless range: Class 2 standard range 10m/33ft
- SWEAT & WATERPROOF IPX7 protection for gym and fitness workouts and running in all weather conditions
- SPORT FIT PLUS Comfortable headphone design runs over your ears for a secure sport fit or under for more relaxed situations
- COMFORTABLE FIT Interchangeable Comply Ultra thermo-reactive tips provide enhanced durability rich sound and conform to individual ear canals for a comfortable secure fit
- PREMIUM SOUND The Jaybird app provides Custom EQ allows athletes to customize sound EQ and save personal settings to the buds