Jaybird has launched the new X4 Bluetooth wireless headset. It features improved design over the previous X3 model while maintaining most of the features and performance.
The X4 features an IPX7 certified design, which makes it a lot more water-resistant than the X3 that were merely sweat-resistant. The X4 also features a new Speed Cinch cord design that lets you tighten the slack at the back of your neck for a more comfortable fit.
Apart from the design, not much else has changed. It still has the same audio quality and the same 8-hour battery life. It also unfortunately has…