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JBL Live 400BT

Wireless Bluetooth® on-ear headphones (Green)

Item # 109L400BTG

These JBL headphones pack lots of convenient wireless features into an affordable package.

These JBL headphones pack lots of convenient wireless features into an affordable package.

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About the JBL Live 400BT

Go wireless with these value-packed Bluetooth headphones

When I recently got my first pair of Bluetooth headphones, I was surprised at how quickly they became useful in so many ways — from listening to music at the office, to making phone calls, to watching Netflix or YouTube clips on my tablet. These JBL headphones get you into Bluetooth wireless convenience at a reasonable price. And we've been really impressed lately with the sound performance of JBL's headphones in this price range. The Live 400BT uses large 40mm drivers for punchy sound with full bass.

Go wireless with these value-packed Bluetooth headphones

When I recently got my first pair of Bluetooth headphones, I was surprised at how quickly they became useful in so many ways — from listening to music at the office, to making phone calls, to watching Netflix or YouTube clips on my tablet. These JBL headphones get you into Bluetooth wireless convenience at a reasonable price. And we've been really impressed lately with the sound performance of JBL's headphones in this price range. The Live 400BT uses large 40mm drivers for punchy sound with full bass.

Some cool extra convenience features

JBL added some nice touches to make these Bluetooth headphones extra-useful. Tap the left earcup to access the Google Assistant or Amazon Alexa through your smartphone, then just speak your commands. You'll set up the voice control assistant of your choice using the company's free My Headphone app. These headphones also come with an Ambient Aware mode, which uses the built-in mic to increase the volume of ambient sounds. That helps you stay aware of what's going on around you. There's also a handy TalkThru mode that reduces the volume of the music, so you can have conversations with others without having to take the headphones off.

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Product highlights:

  • sleek on-ear design
  • 40mm dynamic drivers deliver immediate sound with punchy bass
  • Bluetooth 4.2 connectivity for wireless music listening and phone calls with compatible smartphones
  • tap the left earcup to access Google Assistant or Amazon Alexa
  • buttons on right earcup offer music, volume, and call controls
  • built-in rechargeable battery provides up to 24 hours of music listening
  • built-in microphone for hands-free calls
  • Ambient Aware button increases ambient sounds so you can hear what's going on around you
  • TalkThru mode reduces the music volume so you can talk to people without removing the headphones
  • form-fitting design keeps headphones from moving around
  • fabric-covered headband and ergonomically designed earpads for long-lasting comfort
  • includes 3.5mm miniplug headphone cable with woven jacket for wired listening
  • USB charging cable included
  • frequency response: 20-20,000 Hz
  • impedance: 32 ohms
  • weight: 6.83 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # jbllive400btgrnam
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What's in the box:

  • On-ear headphones (green)
  • 48" Audio cable with in-line remote/microphone (angled 3.5mm plug)
  • 40" USB charging cable (Type A USB on one end and Micro-B USB on other end)
  • Quick Start Guide
  • Warranty Card
  • FCC and IC statement
  • Attention sheet
  • Google Assistant sheet

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More details on the JBL Live 400BT

Mark G.

Features & specs

General
Fit Style On-ear
Earcup Type Closed
Earcup Width x Height 2.608" x 2.608"
Noise-canceling No
Bluetooth Yes
Mic For Taking Calls Yes
iPhone Control Yes
Lightning Connector No
Android Control Yes
Frequency Response 20-20k Hz
Sensitivity 106 dB
Impedance 32 Ohms
Weight 7.3 ounces
Cord Length 48"
1/4-inch Adapter Included No
Volume Control Yes
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Features

Overview: The JBL Live 400BT on-ear wireless headphones let you listen to music or phone calls hands free while you're on the go. The Live 400BTs feature Bluetooth 4.2 with on-board controls for volume, music playback, and phone calls. You can easily access the Google Assistant or Amazon Alexa directly from the headphones. The Live 400BT comes with a charging cable, and a detachable audio cable with remote and microphone to listen when the battery is low.

Drivers: The Live 400BT is equipped with large 40mm dynamic drivers to deliver JBL's legendary Signature Sound.

Voice Assistant: You can access the Google Assistant or Amazon Alexa by simply tapping the ear cup. Setup for your preferred voice assistant is done in the JBL My Headphones app.

Ambient Aware: The JBL Live 400BT lets you keep in touch with your surroundings while you listen to your music. The Ambient Aware feature uses the built-in microphones to increase the ambient sound to let you hear what's going on around you.

Talk Thru: While you listen to your music, you can talk to your friends or listen to annoucements at the airport without having to remove your headphones. The Talk Thru feature lowers the music volume level so you can clearly hear others.

Bluetooth: The Live 400BT wireless on-ear headphones feature Bluetooth Version 4.2, and are compatible with A2DP (v1.3), AVRCP (v1.5), and HFP (v1.6) profiles.

My JBL Headphones App: The My JBL Headphones App, available for iOS and Android devices, provides extra controls and settings beyond the on-board buttons. In the app, you can select from 3 preset EQ curves, as well as customize or create you own EQ settings. You get greater control of the Ambient Aware and Talk Thru features. My JBL Headphones provides access to Amazon Alexa or Google Assistant voice assistants to control the headphones with your voice. The app displays the battery level of your headphones as a percentage. Any product or firmware updates will come wirelessly through the app to the headphones. The app also has a product tutorial and FAQs under the Product Help tab. My JBL Headphones App is compatible with iOS devices (9.0 or later) and Android devices (5.0 and up).

Battery: The Live 400BT on-ear wireless headphones are powered by a built-in 3.7V 700mAh Polymer lithium-ion rechargeable battery. The battery charges in approximately 2 hours via the supplied USB charging cable. On a full charge, the battery gives you up to 24 hours of wireless music playback or talk time with Bluetooth. A 15-minute Quick Charge provides approximately 2 hours of playback/talk time.

Specifications:

  • Frequency Response: 20Hz to 20kHz
  • Sensitivity: 106dB
  • Maximum Input Power: 15 mW
  • Impedance: 32 ohms
  • Dimensions: Ear Cup: Diameter 2.608", Depth 1.605"
  • Weight: 7.3 ounces

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
saw online... new model..description sounded like it might work for me [ Frank  Apr 27, 2019 ]

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