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JBL Live Flex 4 Silver
Wireless earbuds - Adaptive Noise Cancellation 2.0 - IP54 - Bluetooth 6.0 - Controls/Microphone - 10 + 40h battery life - Charging/transport case with touchscreen
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Immersive sound that accompanies every moment
Designed to keep pace with the whole day, the JBL Live Flex 4 combine JBL signature sound with high-resolution audio precision and JBL spatial sound. Their 12 mm dynamic drivers deliver crisp detail, deep bass and a natural balance, while Adaptive Noise Cancellation 2.0 analyses the environment in real time to reduce distractions. The Smart Ambient function lets you stay aware of outside sounds when the situation calls for it. Designed for commuting, light workouts and night-time listening alike, these earbuds with a Flex design are water and dust resistant according to the IP54 standard. Their battery life can reach 50 hours with noise cancellation turned off.
A smart case and crystal-clear calls
A true control hub, the new Smart Charging Case features an intuitive display that lets you adjust the volume, skip tracks, manage noise cancellation or Ambient Sound mode and fine-tune equalisation, without taking out your phone or opening the app. For conversations, the JBL Live Flex 4 rely on six microphones, beamforming technology and an AI-trained noise reduction algorithm. The voice therefore remains clear and natural, even when the surroundings get busy. The Smart Talk function automatically detects when the user is speaking and pauses the music to make spontaneous exchanges easier.
Connected technologies for personalised listening
Thanks to Personi-Fi 3.0, the sound output can be adapted to each person's hearing profile and preferences. The JBL Headphones app also lets you fine-tune Adaptive Noise Cancellation, adjust the level of ambient sounds, customise control gestures and optimise playback for audio and video. Bluetooth next generation with Audio LE ensures low-power streaming and provides access to unicast streams as well as Auracast broadcasts from the app. Google Finder makes it easy to locate the earbuds, while Audio Switch lets you easily switch from a phone to a tablet or a laptop. Finally, fast charging offers up to 4 hours of listening in just 10 minutes, and Qi compatibility lets you charge the case wirelessly.
Main features:
- Earbuds wireless
- Drivers: 12 mm dynamic
- Sound signature: JBL Signature Sound
- Frequency response: 20 Hz to 40 kHz
- Impedance: 16 ohms
- Sensitivity: 98 dB SPL at 1 kHz
- Maximum sound pressure: 95 dB
- Microphone sensitivity: -38 dBV/Pa at 1 kHz
- Number of microphones: 6
- Bluetooth version: 6.0
- Audio connectivity: Bluetooth with Audio LE, unicast streams and Auracast
- Lithium-ion battery
- Time required for a full charge: 2 hours
- Fast charge: up to 4 hours of playback after 10 minutes of USB Type-C charging
- Wireless charging: Qi compatible
- Music playtime with Bluetooth connection and ANC disabled: up to 10 hours
- Total battery life with case and ANC disabled: up to 50 hours, including 40 hours provided by the case
- Audio technologies: JBL signature sound, high-resolution wireless audio and JBL spatial sound
- Noise cancellation: true Adaptive Noise Cancellation 2.0 with real-time calibration
- Sound environment management features: Smart Ambient, Ambient Sound and Smart Talk
- Sound customisation: Personi-Fi 3.0
- Compatible app: JBL Headphones
- Compatible services: Google Finder and Audio Switch
- Case controls: volume, track change, ANC management, Ambient Sound and equaliser adjustment
- Earbud weight: 4.5 g per unit, or 9 g for the pair
- Charging case weight: 67.1 g
- 1x pair of JBL Live Flex 4 earbuds
- 1x charging case
- 1x warranty/warnings booklet
- 1x quick start guide/safety sheet
Select your criteria
General information |
Product name |
JBL Live Flex 4 Silver |
Brand |
JBL | |
Model |
JBLLIVEFLEX4SIL | |
Design |
Headset type |
In-ear |
Headphones configuration |
Closed back | |
Ear coupling |
In-ear | |
Use |
Hi-Fi | |
| Telephony | ||
Foldable |
No | |
High-Res audio |
No | |
Active noise cancelling |
Yes | |
Audio specifications |
Speaker diameter |
12 mm |
Bandwidth (Min frequency) |
20 Hz | |
Bandwidth (Max frequency) |
40 kHz | |
Impedance |
16 Ohm | |
SPL Max |
98 dB SPL | |
Connectivity |
Remote control |
No |
Volume control |
No | |
Connector(s) |
Bluetooth | |
Wireless |
Wireless |
Yes |
True Wireless |
Yes | |
Wireless charging compatible |
No | |
Bluetooth |
Yes | |
Bluetooth technology |
Bluetooth 6.0 | |
Auracast Bluetooth |
Yes | |
NFC |
No | |
Integrated voice assistant |
Without voice assistant | |
Power supply type |
Lithium-ion battery | |
Battery life |
10 Hour(s) | |
Physical characteristics |
Color |
Silver |
Headphone weight |
9 g | |
Receiver weight |
67.1 g | |
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
Harmonised legal guarantee notice
|
|
Safety Information |
Responsible person |
Harman International Industries, Incorporated EMEA Liaison Office |
Postal address |
Danzigerkade 16, 1013 AP Amsterdam, Pays Bas | |
Electronic Address |
Click here
|
See all JBL products
Product referenced on 28 Jul 2026
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