What's in the box:

1 x Jaybird X4 Wireless Sport Headphones,1 x Comply Ultra Ear Tips M/L,1 x Oval Silicone Ear Tips S/L,1 x Secure-Fit Ear Fins 1/2/3,1 x Speed Cinch,1 x USB 2.0 Charging Cable,1 x Shirt Clip,1 x Carry Pouch

Rugged versatility for runners & outdoor athletes

X4 is the evolution of our do-it-all wireless headphones for the all-around runner and outdoor athletecomfortable, rugged and fully waterproof to tackle any run, ride or trail in any conditions.

1. Premium sound with custom EQ

   Hear your music clear and true in uncompromising audio quality. Crank up the bass or treble in the Jaybird app to customize your sound and save your personal settings directly to the ear buds.

2. 

   One-touch music and calls + integrated mic

   Answer/end calls, control volume, skip tracks and mute the mic with the push of a button. On-cable controls make it a snap to manage music and calls on the run.

3. 

   8 Hours of Play Time

   Get eight full hours of wireless play time on a single charge. Need a little extra juice for your workout? Get 1 hour of play time on a quick 10 minute charge.

4. 

   Sport Fit Plus

   Our comfortable, versatile design runs over your ears, and even comes with our adjustable Speed Cinch for a secure, sport-specific fit. Or wear it under your ears for more relaxed music moments.

5. 

   Sweat and Waterproof

   Rain, snow, and shine, X4 has your back. Its insane IPX7 rating means your headphones are fully sweat proof and waterproof for running all out in any weather conditions.

6. 

   Custom fit and comfort

   X4 comes complete with interchangeable ear fins, silicone tips, adjustable Speed Cinch, and our exclusive Comply Ultra Foam Tips that conform to individual ear canals for a comfortable, secure fit.