JBL Wave Flex 2 – comfortable wireless headphones

The JBL Wave Flex 2 headphones combine JBL Pure Bass Sound with an ergonomic open-back design for comfortable, everyday listening. 12mm dynamic drivers deliver powerful bass. Smart Ambient lets you stay aware of your surroundings without taking your headphones out of your ears.

Four microphones help with clear hands-free calls, and multipoint connectivity lets you connect to two devices at once. The JBL Headphones app lets you customize your sound. The headphones play for up to 10 hours on a single charge, and the case adds up to 30 hours. Quick charging via USB-C gives you up to three additional hours of listening time after 10 minutes.

Technical features

• Color: black
• Sound units: 12 mm
• Microphones: 4
• Features: JBL Pure Bass Sound, Smart Ambient, TalkThru
• Playtime: Up to 40 hours total (10 hours earphones and 30 hours case)
• Quick charge: 10 minutes for up to 3 hours of playback
• Protection: headphones IP54, charging case IPX2
• Connection: Bluetooth, multipoint connection with two devices
• Control and customization: JBL Headphones app
• Charging: USB-C

It is important to know

When choosing the JBL Wave Flex 2 wireless headphones, it is crucial to consider the open-ear fit and the resulting usability. Everyday portability and comfort are strong points, but some limitations are clearly related to the open design and functionality in different environments. Before purchasing, we advise you to ask yourself how important noise isolation, faithful bass reproduction or stability of the headphones during movement are to you.

• The open-ear design increases comfort and allows you to better perceive your surroundings while listening, but offers weaker isolation from external noise - in very noisy places, ambient sound can drown out the music or call.
• True Wireless connectivity provides complete freedom of movement without getting tangled in wires, but connection stability depends on the Bluetooth device and possible interference in the environment.
• Support for features like Pure Bass sound and Smart Ambient allows for more adaptive listening, especially when you want to stay aware of your surroundings – but there's no strong passive noise cancellation compared to closed-fit or ANC models.
• 40 hours of combined autonomy (earphones + charging case) in practice means you rarely have to worry about charging, but the actual listening time per charge is much shorter and depends on the volume and selected functions.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Daily listening and mobile use

As True Wireless headphones with an open design, they are very suitable for city use, riding public transport or walking - the wearing comfort and ease of use stand out.

🟡 Listening in very noisy places

Suitable with limitations – due to the open fit and lack of ANC, they do not offer effective noise cancellation, so in a crowded or noisy office, the surroundings may interfere with listening.

🟢 Easy outdoor sports activities

Perfect for running, walking or cycling in the city, as you can hear your surroundings well and stay safer; the wearing stability is good enough for most everyday movements, but less so for very intense exercise.

🟡 Listening to or working at the computer for hours

Fits with limitations – the comfort of the open design comes into its own with long wear, but if you want complete isolation or intense bass, you'll hit the limits of the open fit.

🟢 Making calls and quickly switching between devices

The headphones support calling and basic on-the-go control well; connecting to a device is simple, but lacks additional features such as advanced switching between multiple devices.

Answers to frequently asked questions

Does an open fit mean I will always hear everything around me?

The open design allows for better perception of what is happening in the surroundings, but does not provide isolation from external noise - in loud environments, the surroundings can interfere with music or conversation.

How many hours can I actually listen to music on a full charge?

The longest autonomy includes multiple charges via the case; individual use lasts a shorter time, typically up to a few hours, before the headphones will need an additional charge in the case.

Are these headphones suitable for working in an open office?

They may work well enough in quieter offices, but the open design does not drown out the conversation of colleagues; if you want complete solitude, we recommend caution when choosing an open model.

What does the “Smart Ambient” feature mean on these headphones?

Smart Ambient allows you to listen to music and simultaneously detect sounds from your surroundings; useful for those who don't want complete sound isolation.

Do they work well on Android and Apple devices?

Bluetooth connectivity is universal and works with most devices; additional features, such as quick switching between devices, may be limited compared to dedicated integrated models.

Description updated: October 2026

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