JBL Synchros S400BT by Harman

The JBL Synchros S400BT headphones deliver the best possible audio experience whether connected wirelessly via Bluetooth® or physically with the included audio cable. Inspired by JBL nightclub sound systems, the S400BT headphones use Bluetooth® coupled with aptX™ digital coding to stream the richest wireless audio experience available.

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Key aptX™ Features

Consistent audio quality

Fixed compression ratio ensures consistency for wireless audio

Full spectrum of sound

From 20Hz to 20kHz, aptX audio covers the human hearing range

Interoperability testing program

We operate rigorous testing for all aptX-enabled products, so you can be confident all products will deliver the same audio quality

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