• Award Winner

Synchros E40BT

Item# E40BTBLK
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Device Compatibility

Bluetooth Yes

General Specifications

Bluetooth Transmitter Power less than 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
  • 1 Safety sheet
  • 1 USB aux cable for charging
  • 1 Straight aux cable
  • 1 JBL E40BT on-ear headphones
  • 1 Quick-start guide
Next Generation, on-ear stereo headphones featuring JBL’s legendary sound, Bluetooth® connectivity, ShareMe music sharing and mobile-friendly features, all in a stylish, contemporary design. 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 withPureBass performance, treating your earsto expansive frequency response (20hz to 20KHz) with full, undistorted bass. Bluetooth technology allows wireless connectivity with phones, tablets and music players, 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 allowfor 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.

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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.

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Synchros E40BT is rated 3.3 out of 5 by 148.
Rated 3 out of 5 by from Quality? I never right reviews this is my first one so here goes. Overall its a solid headphone great sound, comfortable, sleek design. My problem with the headphone is its quality this is my second one already im having the same problem with my second pair i had with the first one. The left side stopped working and its not like im a careless person im very overprotective about my stuff. The first time it happened i thought maybe it was the actual headphone was broken,but twice... So overall for its price great headphone but lesson learned "cheap is expensive" i would recommend it but you get what you pay for if you have the cash go for better quality
Date published: 2015-11-30
Rated 4 out of 5 by from Great purchase so far I was looking to replace a pair of old headphones that I used at work to drown out background noise. I wanted wireless headphones that could be used wired too if needed but I didn't want to pay an outrageous price. The Varsity Stripe COACH Limited Edition has everything I needed and looked great too. The travel pouch is an added perk too because I don't just use them at work. I travel a lot so they'll be necessity for me in airports and on long flights.
Date published: 2016-03-06
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 Great battery life! I owned these a couple months ago, after a few weeks started to lose some parts, and started to feel a little fragile. Despite, are the best headphones. I ever had.
Date published: 2017-10-20
Rated 5 out of 5 by from JBL has one of the best sound on earth! I am totally amazed by the quality even though the price is not high. The color is great and the sound is legendary. I like the purebass performance very much. Definitely one of the best wireless headphones out there.
Date published: 2017-02-04
Rated 5 out of 5 by from Great fit, Sound, and style I Love them so far. I thought they didn't fit properly around my ears but It was user error (I'll admit it). I also like that nobody else has them in my gym. Always love the sound quality from the subs in the trunk to the headphones on my dome.
Date published: 2017-03-01
Rated 5 out of 5 by from JBL SYNCHROS after my dog eat the charging cable, I just ordered a new cable from e-bay and great its charging and they work great.
Date published: 2017-03-23
Rated 5 out of 5 by from 5 Really good but not so comfortable and the sound is really really clear
Date published: 2017-06-23
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Can the battery be replaced?

Asked by: inesbeag
The battery of the JBL E40BT cannot be replaced.
Answered by: Rhae
Date published: 2018-09-26

e40bt jbl how to pair it to win 7

Asked by: sameh ahmed
We would like to work with you directly, please submit a case request at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Rhae
Date published: 2018-09-19

Hello, i have a JBL E40BT and i love it. I would like to know how is the bluetooth version? Thanks

Asked by: samukamrosa
Hi! The Bluetooth version for the Synchros E40BT is 3.0.
Answered by: Nick F
Date published: 2018-07-25

I have an E40BT from 2016 and recently the two small piece with play symbol has fallen off and I couldn't get it back on. since there was glue mark on it; is it safe to superglue it on?

Asked by: DAN333
Thank you for reaching out to us. If this two small piece with the play symbol is just the logo, there should be no issues gluing it on; if it's an actual play button on the controls, we cannot recommend using any glue or adhesive. If you have any more questions, please contact your local JBL customer support, thank you!
Answered by: Steven M
Date published: 2018-06-16

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

Asked by: lordbear73
I have tried a lot to connect with Windows and doesn't work at all. Device was recognized but not stream audio. Customer Service said to me that E40BT was made to work only with Android and IOS...
Answered by: hdalton
Date published: 2018-06-12

What can I do when my E40BT keep stuttering? Try to restart my MAC also the headphone to reconnect in both way, but its still stuttering.

Asked by: Cris Vo
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Karl Vincent
Date published: 2018-06-01

where I can get some pads I have more than 2 years with mine... I would like to continue using them but the pads have already worn out a lot

We would like to work with you directly to help with your inquiry. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Gian at Customer Service
Date published: 2018-03-06

I moved and could't find my charging cord. Haven't used my headphones in about a year. Went online and bought a cord for E40 BT. Now I can't find the charging port to charge them. I'm 70 years old and not very technologically inclined. HELP!

Asked by: Willey
You can use any universal charging adapter that says 5V/1A. You can get this to any electronic store or if you want to purchase it with us, please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: V Jay
Date published: 2018-02-28
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