Rating Content :
  • Synchros S300a - Synchros on-ear stereo headphones
    Android Compatible
    Android compatible cable design with remote/microphone cable included.
  • Synchros S300a - Synchros on-ear stereo headphones
    Built-in Remote/Microphone
    The built-in remote/microphone allows you to adjust the source volume and answer calls.
  • Synchros S300a - Synchros on-ear stereo headphones
    Stainless Steel Headband
    These headphones feature stainless steel headband for increased durability and style.
  • Synchros S300a - Synchros on-ear stereo headphones
    Carry Case
    JBL sound is always worth protecting. An included carry case keeps the device safe from bumps and bruises.
The JBL Synchros S300 is a tough act to follow when it comes to precision listening. With its portable, conveniently collapsible steel headband design, leather earcushions, the S300 goes above and beyond in craftsmanship both inside and out. Available in 6 different color combinations, it not only feels good and looks good, it brings you all the sonic power, richness, and depth of JBL PureBass performance.

What's In The Box

  • 1 pair JBL S300 on-ear stereo headphones
  • 1 three-button iOS remote/microphone cable or 1 three-button universal
  • remote/microphone cable
  • Carry Case
  • Quick-start guide

Product Specs, Manuals & Compatibility

Compatible with TVs, Laptops, and Mobile devices
Manuals & Downloads
Audio Specifications
Rated Input Power
Frequency Response
10Hz – 22kHz
Maximum SPL
115dB @ 30mW
Control and Connection Specifications
3.5mm jack
Speaker Specifications
Premium 40mm
Depth (mm)
Height (mm)
Width (mm)
Hide Specs

Buy Now

Synchros S300a - Synchros on-ear stereo headphones
Also in Stock at

Please enter all the information below to find a dealer.


10 mi

25 mi

50 mi

Item #: SYNOE300ABNU

Synchros S300a

The next big thing in sound.
$149.95 ea. $199.95
Availability: In-stock and ready to ship.
Why buy direct from JBL.com?
Free Shipping
Free 30 Day Returns
Lifetime Support