JBL Synchros E50BT

Over-the-ear wireless headphones (Black)

Item #: 109E50BTB

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8 Reviews | 2 questions - 8 answers

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The cure for a common problem

JBL Synchros E50BT wireless headphones

Connect the Synchros E50BT headphones to your smartphone wirelessly via Bluetooth and control music and calls with the earcup buttons (shown in Blue).

It's happened to all of us. You're lost in your music when, suddenly, you're jolted as you feel your headphones pull at your head and your music suddenly stops. You've accidentally pulled the headphone cable out of your smartphone. There are two known cures for this problem: be more careful, or get a pair of wireless headphones like the JBL Synchros E50BT. These headphones have Bluetooth built in, so they can connect wirelessly to your smartphone or tablet. Lose the cable and use the earcup controls to play and pause music, adjust the volume, or even take a hands-free call with the built-in microphone.

Cleverly styled and well built, the Synchros E50BT headphones offer JBL's legendary sound, with large 50mm drivers producing plenty of clear detail and PureBass technology bringing the low frequencies to life. The over-the-ear design helps ensure outside noise stays out of your headphones, while keeping your music inside so it doesn't bother others at home or in the office. The earcups swivel and fold for easy storage when they're not in use.

Wireless or wired listening

The Synchros E50BT run on a built-in rechargeable battery, which provides up to 18 hours of use. If your battery runs down, you won't be stuck without music. Simply connect the included headphone cable and keep listening in wired mode. Then, use your computer or a USB AC charger to get your headphones charged up for more wireless use.

Share a song wirelessly

One pair of E50BT headphones is cool. Two pairs can do something really cool. You can stream music to another pair of headphones wirelessly using JBL's ShareMe™ technology. This allows two people to listen to the same song from the same source at the same time. You can share music with any two pairs of ShareMe compatible headphones.

Product Highlights:

  • 50mm dynamic drivers
  • over-the-ear, closed-back design helps block out external noise
  • Bluetooth 3.0 and A2DP connectivity for wireless music listening and phone calls with compatible smartphones
  • earcup buttons offer music, volume, and call controls for compatible Bluetooth connected smartphones
  • built-in earcup microphone with echo-cancellation for clear, hands-free calls with a smartphone
  • PureBass technology delivers low-frequency response with detail and accuracy
  • ShareMe technology allows you to stream music wirelessly to a second pair of ShareMe compatible headphones
  • includes miniplug headphone cable for wired listening (disables Bluetooth functionality)
  • earcups swivel and fold flat for easy storage
  • built-in rechargeable battery offers up to 18 hours of music listening
  • USB charging cable included
  • frequency response: 20-22,000 Hz
  • impedance: 32 ohms
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Over-ear Bluetooth headphones (black)
  • 50" Straight audio cable (straight 2.5mm plug on one end and a right angled 3.5mm plug on other end)
  • 40" Straight USB cable for charging (straight 2.5mm plug on one end and Type A USB plug on other end)
  • Quick Start Guide
  • Warranty sheet

Features and Specs

Fit Style Over-the-ear
Earcup Type Closed
Noise-canceling No
Bluetooth Yes
Frequency Response 20-22k Hz
Sensitivity 115 dB
Impedance 32 Ohms
Weight 10.2 ounces
Cord Length 40"
Airline Adapter Included No
iPod Control Yes
Volume Control Yes
Built-in Microphone Yes
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research


Overview: The JBL Synchros E50BT Bluetooth headphones offer convenience and performance in one stylish and comfortable package. With ShareMe technology, you can even share your experience with another set of headphones. The E50BTs have a built-in Lithium-ion rechargeable battery that provides all day music playback capability. When the battery becomes exhausted, you can plug in the supplied auxiliary cable and continue listening.

Drivers: The Synchros E50BT over-the-ear headphones feature large 50mm advanced drivers with PureBass performance in a lightweight closed design. The 32-ohm drivers give you crystal-clear stereo for enjoying your music or carrying on a phone conversation.

Bluetooth: The Synchros E50BT supports Bluetooth 3.0, with A2DP v1.3, AVRCP v1.5, HFP v1.6, and HSP v1.2. The left ear cup is equipped with a microphone featuring Konnexx echo-cancellation technology to give you a clean connection and clear, hands-free calling. The headphones are compatible with iPad (mini, 3rd and 4th gen), iPhone (5s, 5c, 5, and 4s), iPod touch, MacBook Air, MacBook Pro, Mac mini, Android 1.5 Cupcake to Android 4.4 KitKat, and Blackberry 1.0 to Blackberry 10 OS.

ShareMe: JBL's exclusive ShareMe technology lets you wirelessly and simultaneously share your music with another ShareMe-enabled headphone. When you are paired with a Bluetooth source device, you can then add a second pair of headphones and listen to the same source at the same time--a concert for two. ShareMe can be enabled using two E50BT headphones, a E50BT and an E40BT, or two E40BT headphones.

On-board Controls: The headphones' left ear cup includes a 4-way Multi-function Button (MFB) that lets you control your music playback and phone calls:

  • Press MFB up/down: Raises volume up or down
  • Press MFB forward:
    • Music: 1x play/pause; 2x next track; 3x previous track
    • Phone Calls: short press answer call; long press reject call; manage 2 calls at same time
  • Press and hold MFB forward: 1x fast forward; 2x fast reverse
  • Press MFB backward: ShareMe function

Battery: The built-in 3.7V Lithium-ion rechargeable battery (730 mAh) provides approximately 18 hours of music playback time, or 24 hours of phone talk time. The battery charges in approximately 3 hours via the included USB cable.

Specifications: The Synchros E50BT has the following specs:

  • Frequency Response: 20-22kHz
  • Maximum SPL: 115dB @ 30mW
  • Impedance: 32 ohms
  • BT Frequency Range: 2.402 - 2.480 GHz
  • Weight: 10.2 ounces

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

JBL Synchros E50BT Reviews

Average Customer Review:

8 reviews
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JBL e50bt

Written By Dave p, Worcester ma on Thursday, December 18, 2014

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

They are great not the best for the gym but they work


Written By AlexM, California on Sunday, December 14, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

The JBL's are better than my old Dre's, more comfortable, better sound quality and much more affordable!!! I recommend these to all. Got my wife a pair she loves them, especially since their wireless.

Pros: lightweight affordable sound quality

Cons: could be better in the noise reduction department but OK


Written By Jeff, Asheboro NC on Sunday, December 14, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

Great headphones at an affordable price.the sound on these are very good.i would say that for the price over the others out there these are a good price.people at work are always asking where i got them.also customer service at Crutchfield was excellent.i use them at home with my computer with the included cable and wireless at work.the battery stays charged a very long time.

Pros: Good looks/Good sound/Bluetooth/wired/battery

Great sound at a affordable price

Written By Brian, Rochester, NY on Saturday, December 13, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

Sound great. Easy to setup/use.

Pros: They are headphones. They sound great, are not ridiculously priced, and do what they are supposed too.

Cons: None yet haven't really used them

Great sounding headphones

Written By Minnesotanice, Burnsville, Mn on Sunday, December 07, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

Great pair of bluetooth headphones. Sound quality is excellent. They are a little uncomfortable for me after about an hour or so of listening. Well built, music and movies however have never sounded better or clearer.

Pros: Excellent sound with cool looks

Cons: Uncomfortable on the top of my head and at the ears.

JBL Synchros E50BT

Written By Anonymous, Fort Worth, TX on Friday, November 07, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

I've been using it with several devices ( Computer, phone and Ipod) they are definitely worth the money compared to it's counterparts and you won't be paying high $$$$ for these as you would be for the others.

Great headphones

Written By Anonymous, Lowell MI on Monday, October 06, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

Very comfortable long lasting battery charge, fantastic sound quality for a wireless. My son say it sounds better than his beats.

Pros: Great sound!

Cons: If you have large ears it may be uncomfortable.


Written By Greg, Burke, VA on Sunday, September 07, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Comfort
  • Noise Reduction
  • Sound Quality

I am very impressed withe these headphones. I have used Beats Solo and Monster, these are far superior to both. The sound quality is excellent and for non noise canceling headphones they sure do cancel out just about everything. I bought these to use while mowing my fields and was quite surprised when I could barely hear my thirty hp diesel tractor. The volume level is very good and the fit on my big head and ears was surprisingly comfortable even after 8 hours of mowing. The Bluetooth works easily and has a very good range. Now we just need to see how they will hold up long term.

Pros: Very comfortable Very good at canceling noise even though they are not noise canceling headphones

Cons: Have not found one yet!

Questions & Answers Ask the community. Share your knowledge.

2 questions already asked

Yes you can the only thing is when one device emits a transmission to the device it will stop the other device transmitting, but it is still connected. Also it doesn't connect both at the same time u have to manual connect one. Example I connected my phone and tablet at the same time and ran music thru the phone and just played with the tablet. I had the sounds up on all and every time i touched something on the tablet it cut the music off so i had to keep restarting it. I muted everything on the tablet and it was fine, the music never stopped. Now the reverse will work too. Run music thru the tablet and phone idle. When you get a phone call it stops the music off the tablet and phone takes over. For me this just not practical, the music cuts off when I'm getting a phone call anyway if I'm just using my phone as the player. Hope that helps. [ Dwayne  Nov 03, 2014 ]
We are giving as a gift specifically for use with an iPhone 6. There is no reason it should not work but we have not yet tested. [ JESSE  Dec 17, 2014 ]
Yes, it will work great. [ Mudi  Dec 17, 2014 ]
I can not say for sure, They work great with the I 5s and latest generation I touch. Also, I have had no problem with any of our laptops, tablets or car radios. [ GREGORY S  Dec 17, 2014 ]
These will work with any Bluetooth. I have these connected with my I touch and android. [ ALEJANDRO  Dec 17, 2014 ]
I dont see why not, the work with my iphone 5, should work with anything BT. Plus they come with a cord! [ Diane  Dec 17, 2014 ]
Sorry I don't have the 6 yet... However I do like the headphones! [ MATTHEW  Dec 17, 2014 ]
As long as you have Bluetooth capabilities you should have no problem. I use mine on my Samsung S5 and my Samsung Tab S tablet. So with the iPhone 6 I would suspect you would have no problems. Hope this helps. [ Troy  Dec 17, 2014 ]