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JBL

Synchros E40BT

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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# E40BTBLK

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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Synchros E40BT is rated 3.3 out of 5 by 78.
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
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
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Looking for a wall charger for E40BT. You list rated power input: 30 mW. What is the rated volt/amp supported. For example one of my wall charger output: 5V 1.2A, while quick charger has 5V=3A ; 9V 2A ; 12V 1.5A. What max Volt to Amp ratio charger????

Asked by: freelan
We recommend the standard 5V 1.2A for the E40BT and across our headphones. Going above this can possibly cause damage to the unit.
Answered by: Ren at Customer Service
Date published: 2016-12-04

I dropped my JBL E40BT and one of the small dial-shaped screws came off the hinge. It has an arrow on the facing. Do these screws provide any function or can I simply glue it back on as-is?

Asked by: JohnSantos
The screw that fell off your E40BT is for design-purposes only. You are free to simply glue it back on.
Answered by: Ren at Customer Service
Date published: 2016-12-03

I have a pair of JBL Synchros E40 BT and ive enjoyed using them for about a year but now theres no sound i the left ear piece. What do i do now?

Asked by: SageGT
I don't think this is a "set-up" problem because I had the same problem.  It began intermittently and soon failed.  After carefully removing the left ear-fusion, support, and speaker itself I discovered that one wire to the speaker had become disconnected from the printed circuit board.  The two wires to the speaker are attached near to corner of a circuitboard and was soldered back on.  Use care if you try this as the parts that hold the speaker piece on is very fragile and connected in what appears to be in a backward fashion.  This also requires experienced soldering techniques.  Be careful.
Answered by: BuddyinBC
Date published: 2016-12-03

How do I prevent the E40BT from automatically power off ? I used it to listen to a Skype call and it powers off automatically after 20-30 mins.

Asked by: wlcheong18
The power saving on the E40BT cannot be turned off. It is auto sensing and will turn off if no audio signal is detected for approximately 10 minutes. So, if you have the volume on the E40BT cranked up, and the volume on your source device set really low, it is very possible that the E40BT is not seeing enough of an audio signal to know to stay on. Please try turning the volume on the E40BT down a bit, and then crank up the volume on your source device to get to the level you desire. This will send a signal to the E40BT and it should stay on without any issues.
Answered by: Memen at Customer Service
Date published: 2016-11-29

Product came with Quick Start Guide..... where is full user manual noted in section 2 of the guide (# Full 0wners manual)?? Graphic shows computer with jbl.com/E40BT which is dead link.

Asked by: Debi
We're sorry to hear if the link is no longer working. If you have questions or concerns, please submit a request 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: 2016-11-27
  • 2016-12-10T10:58CST
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