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JBL Synchros S300 A

alaTest has collected and analyzed 23 reviews of JBL Synchros S300 A. The average rating for this product is 4.3/5, compared to an average rating of 4.0/5 for other Headphones for all reviews. People really like the durability and bass quality. The design and usability are also appreciated. There are some negative views about the size, while there are some mixed views about the price and comfort.

reliability, usability, design, bass quality, durability


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the JBL Synchros S300 A is awarded an overall alaScore™ of 90/100 = Excellent quality.

Review analysis

(Based on 23 reviews)

Expert Reviews  

User Reviews  

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Consumer review by: ( review summary for JBL Synchros S300 A


alaTest has collected and analyzed 1 user review of JBL Synchros S300 A from The average user rating for this product is 4.0/5, compared to an average user rating of 4.0/5 for other Headphones on Reviews about the reliability and comfort are on the whole positive. The sound and bass quality are also appreciated. Some have doubts about the size and design, and there are some mixed reviews about the price.

durability, bass quality, sound, comfort, reliability

design, size

100% of the reviews on give this product a positive rating.

This summary is based on the product: JBL Synchros 300a On Ear Headphone - Black

Feb, 2016

Expert review by: Vic (

JBL Synchros S300a Headphone Review


“Hi Vic, we'd like to send you a new pair of headphones for you to try, are you on an iPhone or an Android?”

Jan, 2014

Expert review by: (

JBL Synchros S300i Review: Premium Cans for Your iPhone


Works great with Android devices too With so many headphones out in the market today, it's hard to find a product that would suit your taste and your budget, especially when you're looking to upgrade from the sub 5K segment of the market to something a...

Mar, 2014