Rating Content :
Synchros S300a is rated 4.3333 out of 5 by 3.
Performance: JBL Header Total:: 37307284668205273 - 37307284898736273 = 230531 micro seconds
Performance: product-images:: 37307284902269273 - 37307284904021273 = 1752 micro seconds
  • 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)
Product Features
Cutting-edge design with steel headband and premium leather ear cushions
We meant it when we said we’d build a revolutionary line of stylish headphones. For those who know authentic elegance when they see it and hear it – meet our new JBL S300 Headphone. Its precision boldness and rugged good looks come fused together by a steel headband that’s both lightweight and durable. Its premium leather ear cushions provide your ears with more than just perfect listening. For the fearless interloper within us all, the JBL S300 demands seeing - as much as hearing – to be believed. Score another instant JBL classic.
JBL Professional Audio Sound with PureBass performance
It’s no trade secret we’ve created the world’s most legendary loudspeakers. Artists from the Beatles to Maroon 5 have used JBL equipment to create some of their most historic recordings. So it should come as no surprise we’ve taken Pro-Audio sound to new highs – and depths – of power and portability in our Synchros Series. Introducing JBL Professional Audio Sound with PureBass performance. One listen to our S300 – and the phrase “clarity of sound” will never sound the same. PureBass performance is much more than a tag-line, it’s a philosophy. Focusing on the full audio spectrum, not just the low end, the headphones deliver a balanced audio experience with amazing clarity, and deep powerful bass; producing clear separation of notes, avoiding the boominess and muddy sound found in other popular headphones.
Collapsible design
When it comes to convenience, the perfect pair of headphones should satisfy in all departments – whether in wearing them out on the town or in storing them at home. The S300 headphones incorporate fold-up, 3-D flexibility into their design that lets you fold them, collapse them, and store them neatly away – ready for whatever adventure befalls you.
Detachable cable with Apple 3-button mic/remote cable
On-the-go compatibility with an iPhone or other popular smartphone isn’t just a nicety these days in a premium headphone – it’s what you need. The JBL S300 is built with that principle in mind, coming in two possible configurations: one using an Apple 3-button mic/remote cable and one using a universal 3-button mic/remote cable to keep you’re listening fun and flexible. Either option synchs easily with your S300, allowing you the freedom to enjoy your music or easily take calls without missing a beat
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Performance: features:: 37307284904786273 - 37307284927625273 = 22839 micro seconds
Performance: reviews:: 37307284929267273 - 37307284945766273 = 16499 micro seconds

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Synchros S300a - Synchros on-ear stereo headphones
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Performance: dealer:: 37307284947415273 - 37307284952571273 = 5156 micro seconds
Item #: SYNOE300ABNU

Synchros S300a

The next big thing in sound.
$149.95 ea. $199.95
Availability: In-stock and ready to ship.
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Performance: details:: 37307284958793273 - 37307285126037273 = 167244 micro seconds
Performance: PDP Total:: 37307284665858273 - 37307285133984273 = 468126 micro seconds