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Jaybird X4 Wireless Earphone black metallic/flash

Jaybird X4 Wireless Earphone black metallic/flash

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Rugged Versatility

Custom audio, custom fit, and all-day, waterproof toughness. The advanced X4 is your trailblazing partner.

8-Hour Battery Life

IPX7 Waterproof & Sweatproof

Sport Fit Plus – Over or Under Ear

Comply Ultra Foam Tips

Premium Sound with Custom EQ

Music and Calls

X4 Running

"The X4s are one of the best wireless headphones for running, hiking and mountain biking."

X4 Weather Resistance


Built For Adventure

IPX7 waterproof and sweatproof construction for reliable performance in the worst weather and workout conditions.

Customizable EQ

Create unique, personal sound profiles and save them to your buds.

Your Music, Your Way

Share and Explore Playlists

Sync your Spotify account and swap favorite tracks with the Jaybird community.

Share and Explore Playlists

Support at Your Fingertips

Locate lost headphones, dial in your fit and more.

Weather or Not

Whether you’re sweating buckets in summer or caught in the rain during the muddy shoulder seasons, one thing is for certain—moisture and electronics don’t generally mix.

In the Box

X4 Wireless Sport Headphones

Silicone Ear Tips 1/2

Comply Ear Tips 1/2

Ear Fins 1/2/3

Charge Cradle with USB Cable

Shirt Clip

Speed Cinch

Carry Pouch

Tech Specs


Type: In-ear style

Noise-isolation: Passive

Impedance: 16 Ohm

Speaker sensitivity: 99 +-3dB at 1KHz

Output max. 10mW RMS (with level limit)

Total harmonic distortion <5% (1KHz, 1mW)v
Audio format: 16-bit stereo

Codec: Bluetooth SBC implementation and AAC

Response bandwidth: 20Hz - 20kHz

Driver size: 6 mm


Play time: 8 Hrs*

Charging time: 2 Hrs

Quick charge: 10 min = about 1 hour play time

Charging: Via USB charging cable with Pogo pin connector

Input power: DC 5V 500mA

Type: Lithium Ion

Battery voltage: 3.8V

Energy voltage in watt hrs per battery: 0.2wh

*May vary dependent on usage, device & aging


Bluetooth version: 4.1

Frequency band: 2.4 GHz

Profiles: Handsfree , Headset , A2DP , AVCRP , SPP

Wireless range: Class 2 standard range 10m/33ft


Type: MEMS, omni directional

Sensitivity: -38dB +-3dB (Test conditions: 94dBV/Pa SPL, 1KHz, A-weighted)


Any Bluetooth device with HFP, HSP and A2DP


Headset: 545mm x 13mm x 24.2mm

Controller: 42.5mm x 11.6mm x 5.3mm

Charger: 98mm x 18.1mm x 9.6mm

Weight of headphones (without fins and tips): 14.7g

Weight of charger: 5.5g

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