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Synchros E40BT


Bluetooth® on-ear Headphones featuring JBL signature sound, PureBass performance and wireless connectivity with music sharing feature

$99.9599.95 each
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On-ear stereo headphones featuring Bluetooth® connectivity with ShareMe music sharing.

The new E40BT takes JBL’s legendary signature sound, adds advanced Bluetooth and mobile features, and packages it all in a sleek design that’s both comfortable and head-turning. JBL’s engineers have combined generous 40mm drivers with PureBass performance, treating your ears to expansive frequency response (10hz to 24KHz) with full, undistorted bass. Bluetooth technology allows wireless connectivity with phones, tablets and music players, while giving you single-button access to crystal clear, connection to your mobile phones, using echo-cancelation technology. Built-in ShareMe™ technology lets you to stream music wirelessly to another ShareMe-equipped headphone. A built-in rechargeable Li-ion battery gives 16 hours play time, and when the battery is flat, use the included aux cable for continued, uninterrupted listening. Beyond great sound, the E40BT is designed for comfort, style, and durability. The Ergonomic headband and 360-degree swivel hinges allow for a personalized fit and long-lasting comfort. The butter-soft, leatherette ear cups cradle your ears for all-day comfort and work to seal out distracting ambient sound. The E40BT’s sleek design and five unique color combinations make a visual statement that’s as striking as its sound.

Item# E40BTPUR

Device Compatibility

Bluetooth Yes

General Specifications

Bluetooth Transmitter Power <4dBm
Rated Power Input 30mW

Audio Specifications

Frequency Response 20Hz – 22kHz
Input Impedance 32 ohms
Maximum SPL 114dB @ 30mW

Speaker Specifications

Driver 40mm

Control and Connection Specifications

Microphone Sensitivity -42dBV/Pa @ 1kHz
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 752 KB
  • 1 Safety sheet
  • 1 USB aux cable for charging
  • 1 Straight aux cable
  • 1 JBL E40BT on-ear headphones
  • 1 Quick-start guide

The latest owner's manuals, quick start guides, and documents.

1 Year Warranty

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Call us: 1.800.336.4525

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  • Technical help
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Synchros E40BT is rated 3.4 out of 5 by 90.
Rated 5 out of 5 by from Awesome headphones Was a late birthday present to self best choice ever. No yelling to talk when using the phone. Music clarity is sweet.
Date published: 2017-01-06
Rated 5 out of 5 by from Awesome Gift! I bought it for my husband for Christmas and he loves it!
Date published: 2016-12-31
Rated 5 out of 5 by from my husband is so happy with these headphones i got him for christmas!
Date published: 2016-12-29
Rated 5 out of 5 by from Fantastic! Owned them for a day and all I can say is the sound quality is exactly what I wanted. Noise canceling, great bass, and overall great sound. They look nice, adjustable fit, and comfortable to wear. The bluetooth is easy to connect. Haven't tested the battery life too much yet, but I'm impressed.
Date published: 2016-12-24
Rated 5 out of 5 by from Good price, average quality Like everything else in Brazil, the products are more expensive than in the USA. At half the price I would buy the same product in the USA. It has a reasonable quality of sound, the bass is still weak, the treble with a little distortion when the volume of the music is too loud.
Date published: 2016-11-09
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  • clientName_jbl

Does it work with Xbox one s?

Asked by: Jwbrod
The E40BT is compatible with most Bluetooth-enabled devices unless those devices has its own restrictions. Upon verifying with the XBOX One S, it is currently not compatible to be connected to bluetooth headphones.
Answered by: Ren at Customer Service
Date published: 2017-01-13

Good afternoon! I have the earphone Synchros E40BT but I have lost all the cables. How can I find these cables? I live in Tokyo, Japan

Asked by: Marcelo
Please send an e-mail to support-jp@harman.com and the Customer Service team will be more than happy to further assist you.
Answered by: Ren at Customer Service
Date published: 2017-01-13

Every time I shut down my Windows 10 Laptop I have to re-pair the headphones. Otherwise, I cannot connect to them. I have to remove the device, re-pair it and then connect it again to listen to the audio. Very disappointed.

Asked by: Nithesh
I think the problem might be Windows. Because i have tried with 3 different brands and they all do the same.
Answered by: elbanshee
Date published: 2017-01-11

Is the led supposed to light up when charging? Got these for a gift but nothing happens when i plug it up for charging and can't tell if it's working or not.

Asked by: Shevans
What you are experiencing with the E40BT is not normal. The LED should light up red when charging, and changes color to white when charging is complete. To isolate the issue, please use a different charging cable and an alternative power source. If you are still having issues, please submit a case at jbl.com/contactus and our Customer Service Team will be glad to assist you.
Answered by: Ren at Customer Service
Date published: 2016-12-30


Asked by: GEE67
Yes. The E40BT can be connected to a source device in two ways; via Bluetooth or Auxiliary/Wired connection. If your laptop is Bluetooth compatible, you can simply pair the E40BT with your laptop through it's Bluetooth settings. If not, you can use the provided audio cable to connect with the laptop's headphone jack.
Answered by: Ren at Customer Service
Date published: 2016-12-27
  • 2017-01-16T11:28CST
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JBL Synchros E40BT
In Stock
Synchros E40BT
In Stock

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