True Adaptive Noise Cancelling
Enjoy the soundtrack of your life no matter where you are.
True Adaptive Noise Cancelling technology automatically uses noise sensing mics to adjust to your surroundings in real-time, minimizing distractions when you need to focus and optimizing the headphones' performance for a superior audio experience—all while you adjust ANC mode control with the JBL Headphones app.

JBL Signature Sound and surround sound
Along with powerful JBL Signature Sound, the 40mm drivers offer immersive JBL Spatial Sound that turns any stereo content from any device into virtual surround sound.

Bluetooth 5.3 with LE audio supported
Wirelessly stream high-quality sound even at lower bit rates with the help of the latest Bluetooth technology.  Audio Mode gets you the best available sound, while Video Mode makes sure the sound and visuals of your movies and games are always in sync.

True Adaptive Noise Cancelling with Smart Ambient
With four noise-sensing mics, True Adaptive Noise Cancelling means zero distractions, whether it's time to focus on your studies or get lost in the groove. And if you want to hear the world around you without removing your headphones, Smart Ambient sharpens the sounds of your surroundings.

Wireless On-Ear Headphones with True Adaptive Noise Cancelling and Smart Ambient, delivering JBL Signature Sound
JBL Live 670NC headphones deliver powerful JBL Signature Sound in a comfortable on-ear headband style. When you're deep in your flow, True Adaptive Noise Cancelling with Smart Ambient technology keeps you free from distractions. Then, when you want to keep an ear open to the world around you, you can stay aware as you continue listening to your favorite playlist—or even have a conversation without taking the headphones off. Easily access your preferred voice assistant with a tap on the ear cup to cue up a song, text your friend, check the weather, and much more. You’ll enjoy 65 hours (50 hours with BT+ANC on) of music streaming. And if you still need more, a 5-minute speed charge gets you another four hours. The JBL Live 670NC can connect with two Bluetooth® devices simultaneously, so you’ll never have to miss a call, even if you’re watching a movie on your tablet.

General Specifications
Driver size (mm)
40

Number of Microphones
2

Audio Specifications
Driver sensitivity at 1kHz/1mW (dB)
98

Dynamic frequency response range (Hz)
20 Hz – 20 kHz

Impedance (ohms)
32

Dimensions
Audio Cable Length (ft)
.7

Audio Cable Length (m)
.2

Ear Cup Depth (cm)
1.9

Ear Cup Depth (in)
.8

Ear Cup External Height (cm)
6.9

Ear Cup External Height (in)
2.7

Ear Cup External Width (cm)
6.9

Ear Cup External Width (in)
2.7

Ear Cup Internal Height (cm)
2.7

Ear Cup Internal Height (in)
1.1

Ear Cup Internal Width (cm)
2.7

Ear Cup Internal Width (in)
1.1

Charging Cable Length (m)
.2

Charging Cable Length (ft)
.7

Weight (g)
219

Weight (oz)
7.7

Control and Connection Specifications
Bluetooth profiles
HFP v1.8, A2DP v1.4, AVRCP v1.6.2

Bluetooth frequency
2.4 GHz – 2.4835 GHz

Bluetooth transmitted modulation
GFSK, π/4-DQPSK, 8-DPSK

Bluetooth transmitter power
≤ 13 dBm (E.I.R.P)

Bluetooth version
5.3

Battery
Charging time (hours from empty)
3

Maximum music play time with ANC off (hours)
65

Maximum music play time with ANC on (hours)
50

Maximum play time (hours)
65

Maximum talk time (hours)
33

Features
Audio cable
Yes

Bluetooth
Yes

Charging cable
Yes

Detachable Cable
Yes

Foldable
Yes

Voice Assistant integration
Yes

Active Noise Cancelling
Yes

Ambient Aware
Yes

Built-in Microphone
Yes

Hands Free Call
Yes

JBL Headphone App
Yes

JBL Signature Sound
Yes

Multi-Point Connection
Yes
Over-ear
No

Rechargable battery
Yes

Spatial Sound
Yes

Speed charge
Yes

TalkThru
Yes

Wireless
Yes

True Adaptive Noise Cancelling
Yes