JBL Live Flex 4 True Wireless Noise-Cancelling Earbuds, Purple

Noise-Cancelling: JBL Live Flex 4 are purple true wireless in-ear earbuds with adaptive noise cancellation and a wireless charging case. The listing claims up to 10 hours from the earbuds and 40 additional hours from the case, but its separate battery-life field says 4 hours, so check which figure applies to your expected use.

At a glance

Adaptive noise cancellation and an ambient mode are listed for adjusting how much surrounding sound is heard.
The listing describes six microphones with beamforming and noise reduction for calls.
A 10-minute speed charge is claimed to provide 4 hours of playback.
The earbuds are listed as Bluetooth 6.0 and controlled through an app.

Price

£113.39Save 37%

Reference price: ~~£179.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Wireless charging case is listed, and the feature copy claims up to 10 hours per charge in the earbuds plus 40 hours from the case.
Adaptive noise cancellation and ambient mode offer different listening approaches for noisy settings and awareness of surroundings.
Six microphones are claimed for calls, with beamforming and noise reduction described in the listing.

Technical specifications

21 specifications

Identity
Brand	JBL
Model	JBL Live Flex 4
Colour	Purple
Ear placement	In Ear
Form factor	True Wireless

Audio and noise control
Noise control	Adaptive Noise Cancellation
Noise-control feature	Ambient Mode
Driver type	Dynamic Driver
Driver size	12 Millimetres
Impedance	16 Ohms
Frequency response	40 Hz
Sensitivity	98 Ohm

Connectivity and controls
Wireless technology	Bluetooth
Bluetooth version	6.0
Control method	App
Hardware interface	USB Type C

Power and battery
Battery life listed	4 Hours
Battery charge time	10 Minutes

Materials and protection
Water resistance listed	Waterproof
Enclosure material	Plastic

Dimensions and installation
Weight listed	0.17 Pounds

What to know before buying

Listing details to confirm

Battery claims conflict: a details field lists 4 Hours of average life, while feature copy claims up to 10 hours in the earbuds and 40 more from the case. The listing also gives a 10-minute charge claim of 4 hours of playback. Confirm the applicable playback conditions before relying on these figures. Other listing details are inconsistent: driver size is given as both 10 mm / 0.39'' and 12 Millimetres, and the 10 mm figure appears under a headphone-jack label despite the product being described as wireless. The 40 Hz response and 98 Ohm sensitivity are also unusual labels or units in this listing, so treat them as unconfirmed rather than settled specifications.

What’s in the box

Included

JBL Live Flex 4 earbuds
QSG / Safety Sheet (S / i)
Warranty / Warning (W / !)
Wireless charging case

Who is it for?

A good fit for

Listeners wanting true wireless in-ear earbuds with adaptive noise cancellation and an ambient mode.
People who want app control and a case described as supporting wireless charging.
Buyers who value listed call microphone features and will verify which battery claim applies to their use.

Less suited to

Buyers who need a clearly consistent battery-life or driver-size specification before choosing.

JBL Live Flex 4 True Wireless Noise-Cancelling Earbuds, Purple · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.7 / 5 · 47 ratings

5 stars49%49%
4 stars15%15%
3 stars13%13%
2 stars6%6%
1 star17%17%

The available customer evidence is an aggregate rating with a spread across star levels, including both five-star and one-star ratings. That suggests differing overall experiences, but it does not establish what customers liked or disliked. With no review-summary evidence, there is no reliable basis here to identify specific satisfaction drivers or problems. Consider the listed noise-control and call features in light of your needs, and resolve the inconsistent battery claims before purchase.

Frequently asked questions

How long does the JBL Live Flex 4 battery last?

The listing is inconsistent. A details field says 4 Hours, while feature copy claims up to 10 hours in the earbuds and 40 additional hours from the case. Treat the longer figures as listing claims and confirm the applicable conditions before buying.

Do these earbuds support noise cancellation and ambient sound?

The listing specifies Adaptive Noise Cancellation and Ambient Mode. It does not provide further operating details for either mode.

What comes in the box?

The listed contents are the earbuds, a QSG / Safety Sheet, a Warranty / Warning sheet and a wireless charging case.