Synchros E40BT


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

Product Actions

This item is currently not available.

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# E40BTWHT

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.

Search Result For ""

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

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories
Synchros E40BT is rated 3.4 out of 5 by 122.
Rated 5 out of 5 by from Introduced new undertones After listening to a track that I have heard many times I realized I had actually been missing some of the soft spoken lyrics and undertones. The range is expansive and pure. Even when playing at a modestly loud volume the music was pleasing to the ear, not sharp or harsh. Well done.
Date published: 2017-05-19
Rated 5 out of 5 by from Really Great Sound! I bought it for my wife in purple wich looks nice and stylish. Very useful built-in mic feature. Great bass sound.
Date published: 2017-05-14
Rated 5 out of 5 by from Great Product The sound quality of this product is great. It is really practical to have the Bluetooth feature for wireless listening, which is the primary purpose for this product, surprisingly for a Bluetooth set of headphones, sound quality is not distorted. WIth the cable, the headphones work just as well, it is however very easy to lose the wire, as I did, and as far as I know, I cant purchase another wire.
Date published: 2017-04-30
Rated 5 out of 5 by from Clear sound with INSANE blue tooth range I use these for both personal and professional purposes. Great for sound editing with clear quality incomparable to other headphones I have used in the past in a similar to higher price range. Bluetooth range is better than any before. Great for working out, household chores, and other activities that require lots of cord free moving around.
Date published: 2017-04-29
Rated 5 out of 5 by from Awesome I am so glad I bought these they are the best. They sound just like my plug in JBLs I think it is the company all I have from speaker to headphones are JBL best company ever
Date published: 2017-04-24
  • y_2017, m_5, d_22, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_122
  • loc_en_US, sid_synchrose40bt, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_jbl

i was given these for fathers day i think a year ago maybe two well about 9 months in the left ear stopped working and t mobile refused to replace them which is who we got them from why did it stop working?

Asked by: josh d
What you are experiencing with the E40BT is not normal. Try a different source to isolate the issue. If your source device has a balance control please check and make sure that it is not set favoring the left side. If this doesn't help, please submit a case request at www.jbl.com/support-contact.html and our Customer Service team will be glad to assist you.
Answered by: Joe G at Customer Service
Date published: 2017-05-15

I ordered a pair or the E40s but my inner geek is confused. What is the true frequency response? 20hz-22khz as stated in the audio specs, or the &quot;expansive frequency response&quot; 10hz-24khz beyond human hearing range. Jbl makes both statements.

Asked by: Quasinerd
The correct frequency response of the E40BT is 20Hz &ndash; 22kHz as shown in the updated Spec Sheet.
Answered by: Joe G at Customer Service
Date published: 2017-05-19

When connected via 3.5mm cable to my laptop, the microphone worked for past 1 year and now suddenly stopped. It works fine when connected to my iphone via cable. Please advise.

Asked by: AM41
Based on noted experience, it sounds like the issue is caused by your laptop. We suggest that you contact your computer manufacturer for additional assistance.
Answered by: Joe G at Customer Service
Date published: 2017-05-11

Hi, can this E40BT headset connect to multiple phones at the same time? Thanks!

Asked by: stucchis
The E40BT may be paired to multiple devices at once. However, you can only stream audio to one device at a time
Answered by: Miko at Customer Service
Date published: 2017-05-08

Bluetooth connected, no sound transmitted. Win 10 pro. CSR Bluetooth Radio USB dongle. Anyone know why, have a fix?

Asked by: lordbear73
check printers and devices see if the headset is shown then right click, left click on properties, check to see if all is enabled. Then you should be able to click sound test.
Answered by: AlexSComputerMD
Date published: 2017-05-01

How to understand that the headphones are charging?

Asked by: nastya__n_
The LED should light up red when charging, and changes color to white when charging is complete. The E40BT charges for 3 hours from 0-100% using the cable provided with the unit @5V1A. Please note, charge time will significantly increase when using lower amperage micro USB charger.
Answered by: Erik at Customer Service
Date published: 2017-05-19

My E40BT the led lighted up white and it's not connected, it doesn't turn off with the power button and it cannot be paired to anything. What could it be?

Asked by: TitoR
I am sorry to hear you having this issue with your E40BT. Please try pressing and holding the power button while the headphone is turned on until it shuts off to reset the headphone. If this doesn&rsquo;t help, please submit a case at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Drin at Customer Service
Date published: 2017-04-20

I recently bought the JBL E40 BT. I got them to listen to the TV. I also bought an aluratec receiver to go into the audio out jack on the receiver. They paired once when I first got them. Now they wont pair at all. Wont pair with mpow either.

Asked by: Gloria
Please make sure that the E40BT is on pairing mode. While the headphones are ON, press and hold the Bluetooth button. The LED should start flashing, indicating that the E40BT is now ready to pair. Turn your Bluetooth device ON and you should now be able to connect to the headphones. You mentioned that this was bought recently, if you are still experiencing issues, please contact the local or online store where you bought it from and they will be able to help. If this was purchased from us directly, please submit a case at www.jbl.com/support-contact.html and our Customer Service team will be glad to assist you.
Answered by: Miko at Customer Service
Date published: 2017-04-20
  • y_2017, m_5, d_23, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_142
  • loc_en_US, sid_synchrose40bt, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_jbl

JBL Synchros White On-Ear Bluetooth Headphones
In Stock
JBL Synchros E40BT
In Stock
Fry's Electronics
JBL Synchros E40BT Bluetooth® On - Ear Headphones w/Mic - White
In Stock

Find a Store Near You

The Store Locator is designed to help you find the closest store near you.

Click a store in the list or on the map to view details.