I have only used these headphones for a couple of weeks and very impressed so far. Easy to pair, easy to use, good clean bass, and does not slip out when I sweat.

Every year Jaybird, like many companies, updates their existing products. For the last four years, we've seen them make upgrade after upgrade to their X lineup of headphones, which are incredibly popular and have a near cult-like following.

Good audio quality and sound isolation; IPX7 certified (water resistant down to 1 meter for 30 minutes; Ability to customize EQ settings via Jaybird app; Solid battery life at 8+ hours on a single charge; Quick charge feature gets you 1 hour of playback off just 10 minutes of charging

Jaybird got rid of the cord management clips (we think this was a mistake; Fit won't be for everyone

These good-value headphones with customisable sound settings are a solid update on Jaybird’s popular X3s

The Jaybird X4 Wireless are great wireless sports in-ears that are versatile for everyday casual use. They block a decent amount of noi...

Jaybird, one of the early leaders in wireless in-ear sport headphones, has a new X-series headphone, the X4. Not only is it sweat proof but Jaybird says it's fully waterproof, with up to 8 hours of battery life and fast charge feature that gives you one hour of play time from a 10-minute charge.

Jaybird has included new tips and fins that promise a more comfortable secure fit in the next-generation of the company's popular X-Series headphone.

Jaybird's X series has held a position among our favorite Bluetooth earphones for over five years now. Priced identically to their predecessors at $129.99, the company's new X4 earphones bring some new tricks to the table. The waterproof in-ears feature exclusive-to-Jaybird Comply Ultra foam eartips, redesigned interchangeable eartips and fins, and a new cable cinch management system. If these sound like somewhat incremental upgrades, they are, but when your product is among the best, not every iteration needs to reinvent the wheel. In terms of audio quality, Jaybird's free app offers customizable EQ, so you can lock in whatever sound signature you desire, from pounding bass to austere flat response. The X4 earphones are incredibly versatile, and earn our Editors' Choice for exercise-focused in-ears. Design Available in black, glacier white, or jade, all X4 models feature metallic accents and can be worn over the ear, with the cable behind the neck, or with the cable dropping belo...

The wireless, exercise-focused Jaybird X4 earphones are supremely versatile, delivering booming bass or balanced audio depending on your EQ preferences.

Powerful audio performance that is completely customizable using the app's EQ; Excellent in-ear fit; Waterproof

Short; proprietary charging cable