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Item# E40BTBLK

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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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.

What's in the box?

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

The E40BT is a stylish, wireless headphone that is the perfect complement to a smart device or tablet. It’s also a social hub: activate ShareMe with the touch of the ear cup and stream your music to another ShareMe enabled headphone. The E40 is a “concert for 2”.

Listen all day, charge at night. The built-in rechargeable Li-ion battery powers the E40 for a generous, best-in-class 16-hours of play time. And on the occasion that you find yourself without power, use the included 3.5mm aux cable to play passively. Also included, a micro USB cord for recharging.

The E40BT keeps you connected, not tied down. Seamlessly shift from music listening to a phone call at the touch of a button. Speak wirelessly via the built-in microphone and experience clarity thanks to JBL echo-cancelation technology.

The E40BT delivers uncompromising highs and expansive lows; performing at a high level, is reproduces a wide frequency response from 10hz to 24khz. The large drivers combine with JBL’s PureBass performance to guarantee a dynamic, undistorted listening experience – Hear the Truth.

The lightweight, ergonomically designed headband with soft, leatherette ear cushions cradle your ears for all-day listening comfort, while shutting out noise from the outside world. 3D, aluminum swivel hinges align the ear pad for the perfect fit and ultimate wearability.

Head turning, the E40BT’s contemporary design and five fresh color choices to make a bold statement.

Bluetooth Transmitter Power
Rated Power Input
Frequency Response
20Hz – 22kHz
Input Impedance
32 ohms
Maximum SPL
114dB @ 30mW
Microphone Sensitivity
-42dBV/Pa @ 1kHz

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.

Request an Exchange

Call us: 1.800.336.4525

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Synchros E40BT is rated 3.3582089552238807 out of 5 by 67.
Rated 5 out of 5 by from This product does everything right Once in awhile you you buy something and it's everything you hoped it would be and more. The sound, functionality, comfort,reliability and durability are all 5/5. For almost 6 months I have used this headset daily for at least 2 hours a day - it's the most reliable piece of technology I've ever owned.
Date published: 2016-06-17
Rated 5 out of 5 by from Great I AM SOO HAPPY , ı recommend this products for total satisfaction
Date published: 2016-05-18
Rated 5 out of 5 by from Awesome sound quality, features and easy to use Got them as a gift from my best buddies, absolutely loving it. Great sound quality and user friendly.
Date published: 2016-04-13
Rated 5 out of 5 by from Great I bought this two weeks ago and have only used it about 6-8 hrs. I still haven't had to charge it up yet. The booklet that came with it is hard to understand but it wasn't hard to figure out how to use it. I think it will be a good headset. I like the idea that I don't have to have any cables to use it.
Date published: 2016-04-05
Rated 5 out of 5 by from JBL E40BT Headphones I have had my E40's for about 3 months now. They are awesome headphones. When I first used them I was shocked at how good the sound stage was.. excellent rendition. I replaced my Audio Technica ATH-3 with these EB40Tafter 40 years.. There's a reputation on it's own.. Older guys will know what I am on about (ATH-3)..
Date published: 2016-01-27
Rated 5 out of 5 by from Great headphones Easy setup sounds great for the money better then beats hands down !!
Date published: 2016-01-14
Rated 5 out of 5 by from bought it as a gift bought it as a gift ! just waned them to have something nice!
Date published: 2016-01-14
Rated 5 out of 5 by from These Headphones Sound Awesome I own a lot of JBL products Home audio speakers like the JBL L112, L96, L15. All three sets driven off of a vintage Pioneer SX 1980. My truck even has two pair of JBL T545's in it. I also own several sets of headphones J55A in black and J55I in white. I have now added a set of SYNCHROS E40BT to my collection. I have heard other brands and nothing comes close to the sound quality of JBL.
Date published: 2016-01-14
  • 2016-08-27T08:01CST
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Very happy with my E40BT. Connected it easily to my PS4 via BlueTooth. Problem: microphone doesn't seem to work. Do you have a solution?

Asked by: Jack Bowe
Due to PS4 profiling concerns, The microphone for the JBL E40BT will not work as the microphone The microphone will only work as a mic for phone calls when connected to a smart phone. What you can try that might work is to connect the 3.5mm audio cable on the controller with the other end connected to your E40 BT  . 
Answered by: Jaycob at CustomerService
Date published: 2016-08-26

I just bought the jbl synchros e40bt bluetooth on-ear headphones. The power light indicator is white (fully charged?). My samsung galaxy note 4 can't find the headphones for blue tooth. HELP.....

Asked by: carolyn4535
A white LED light indicator means the headphone is ON. To have this connected on your phone 1. Press and hold the POWER ON button for 0.5 seconds. The LED light indicator should blink fast if it’s blinking slowly, You need to press and hold the POWER ON button again till it starts blinking fast. 2. Once LED light is blinking fast you are ready to pair to your mobile phone. 3. From any Home screen, tap Apps. 4. Tap Settings. 5. Scroll to 'NETWORK CONNECTIONS,' then tap Bluetooth. 6. Slide the Bluetooth Switch right to the ON position. 7. The Bluetooth Switch moves right and turns green. 8. If necessary, turn on the other device and make it discoverable. 9. Under 'AVAILABLE DEVICES,' tap the device to pair. 10. Tap Scan if you do not see the device.
Answered by: Jaycob at CustomerService
Date published: 2016-08-23

They won't start on long enough for me to actually do anything with them. They will turn on for 30 seconds and then turn off for no reason. The light is blinking normally though

Asked by: Say_Boss
The Synchros E40 BT should be able to play up to 16 hours depending on audio content and volume level. Please ensure that the headphone is fully charged before using it. There’s a LED light indicator on the right ear cup that goes red when the battery is low.I However if the headphone is fully charged and you’re still having the same concern. the headphones may not working as it is supposed to. If the headphones are within one year from purchase, please do submit an email case to www.jbl.com/contactus and our customer support team would be able to assist with the warranty of the headphones.
Answered by: Jaycob at CustomerService
Date published: 2016-08-17

I have a HP Windows 10 Intel 15T Laptop Notebook and it has the ability of Bluetooth in terms it can find nearby Bluetooth devices to connect to. But when I turn these headphones on it cannot be found on my Bluetooth in my laptop what is the problem?

Asked by: Tanderson
When switching the E40BT, it would initiate pairing status with the last/previous device that it was paired to. If the headphones were connected to a mobile device it would search for that device and if the device is not available the pairing status would go on standby, meaning, the headphones would not be "searchable" by other Bluetooth enabled devices. You would need to initiate pairing status again on the headphones by pressing the power button once(DO NOT PRESS AND HOLD THE POWER BUTTON), the power button would start to blink indicating pairing status and that the headphone is "searchable" again. The E40BT does not need any special drivers or settings toggled to get connected to computers/laptops or any Bluetooth enabled devices. If ever the device asks for drivers, please perform the following: For Windows Operating Systems, you just need to update the Bluetooth Hardware of the computer/laptop. ** Go to Control Panel ** Go to Hardware and Sound ** Under Devices and Printers select Device manager ** In Device Manager select Network/Bluetooth Adapters ** Once there Update the Drivers For Mac OS, you would just need to update your operating system to the latest version.
Answered by: Amir at Customer Service
Date published: 2016-08-13

How to turn off E40BT?

Asked by: Bart33
To turn off the E40BT, just press the Bluetooth button once.
Answered by: Joe G at Customer Service
Date published: 2016-08-12

I cannot hear the left side of the headphones... is there a way to fix this problem?

Asked by: Sarah Elizabeth
Unfortunately, if audio is not audible from either side, a wire connecting the small driver might have been cut on the inside. If your headphones are within one year from purchase, please do submit an email case to www.jbl.com/contactus for a warranty replacement.
Answered by: Amir at Customer Service
Date published: 2016-08-01

Hello I bought a JBL E40 a week ago , when I try to charge there is no red light glowing. How do I know if it is charging or charged, what should I do?

Asked by: tomthumb
It sounds like it's not holding a charge. The LED lights up red when charging, and changes color to white when charging is complete. Try charging it directly on working power outlet using any USB wall adapter. If this doesn't help, I would recommend to contact the store where you purchased it if for an exchange. If this is no longer possible, please submit a case at www.jbl.com/contactus and the Customer Service team will be more than happy to further assist you.
Answered by: Joe G at Customer Service
Date published: 2016-07-31

Hi, I was wondering how will I know if my headphones are fully charged? They are charging now, and the bluetooth sign is on in a red color. Does that mean it is fully charged? Thanks!

Asked by: Anon
The solid red light indicates that the unit is charging. Once the red light on the bluetooth symbol turns off, that indicates that the battery is fully charged.
Answered by: Karissa
Date published: 2016-07-24
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