soundcore by Anker Space A40 auto-adjustable active noise cancelling wireless earbuds

The essentials

If you’re shopping for active noise cancelling (ANC) wireless earbuds, the Space A40 is built around two everyday goals: reduce outside noise without you having to fiddle all the time, and keep going for long listening sessions. On paper, they lean towards a practical “use them daily” type of pair, with auto-adjusting noise cancellation, app-based customisation, and a battery life figure of up to 50 hours.

There’s also an audio side to this—not just noise cancelling. The earbuds are described as using double-layer diaphragm drivers, with support for LDAC and “Hi-Res Sound”. That matters if you listen to higher-quality audio and you care whether music still sounds balanced when ANC is on.

One limitation to keep in mind: we’re only given broad feature claims here. If you’re a detail-obsessed buyer, you’ll still want to sanity-check real-world performance expectations (especially around how ANC feels in your typical environment).

What they’re for (and what they do well)

The Space A40 makes the most sense if your listening life is split between commuting, office work, travel, and general day-to-day use. Auto-adjustable ANC is aimed at handling changing surroundings—so the noise cancelling level can adapt as you move from quieter spaces into busier ones.

In a practical scenario, imagine walking from a relatively calm street into a train station. With auto-adjustment, you’re not stuck with one fixed ANC level, the idea is that the earbuds detect external noise and counteract it, which can feel more natural over time.

The headline noise reduction claim is “up to 98%”. That’s a big number, and it’s worth treating it as a best-case marketing figure rather than a guarantee for every setting. Still, the overall approach—smart detection plus automatic tuning—does line up with what many people want from ANC earbuds.

Key features worth paying attention to

The standout differentiator here is the combination of auto-adjustable noise cancellation and app customisation. Instead of just giving you a single ANC mode, the earbuds are meant to adjust noise cancelling level based on your surroundings. Then, through the app, you can tailor sound settings and control playback.

Sound and codecs

The earbuds are described as compatible with LDAC. If your phone and music setup support LDAC, that can help with preserving more detail in the signal. They’re also positioned around balanced audio and profound bass, which suggests they’re trying to be enjoyable across genres rather than tuned for only one style.

Fit and comfort

They’re built with lightweight materials and an ergonomic design, and they include various earbud sizes. That detail is important because ANC performance can be strongly affected by seal quality. If you find the right tips for your ears, you’re more likely to get both comfort for longer wear and a better passive seal—no matter what the ANC is doing.

Battery life and charging: where the numbers help

A claimed 50 hours of playtime is the kind of figure that can reduce how often you need to charge—especially if you use them daily. There’s also fast charging mentioned: a 10-minute charge gives 4 hours of listening.

This pairing of long overall battery plus a quick top-up can be genuinely useful on weekdays. You’re less likely to be caught out if you forget to plug them in at night.

The app and controls (what you can realistically expect)

The app is described as user-friendly and “personalizable”, with control over sound settings and basic actions like play, pause, and volume. If you prefer not to rely solely on touch controls, having app control can make everyday adjustments easier.

However, the exact scope of what you can customise isn’t detailed here. So if you’re specifically looking for very granular EQ control or lots of ANC profiles, it’s worth checking what the app offers before you commit.

Who should buy these, and who should skip them?

It’s a good fit if you want auto-adjustable active noise cancelling for changing environments, and you’d like the option to tweak sound via a companion app. You’ll likely appreciate the comfort-focused design and the inclusion of different earbud sizes, especially if you wear earbuds for hours at a time.

It may not suit you if you’re chasing guaranteed “best-in-class” ANC performance in a specific environment (for example, constant low-frequency noise) and you’re the type who expects hard, measurable results rather than feature claims. It also might be a hassle if you don’t plan to use an app at all—because that customisation is a big part of what’s being sold.

Buying verdict

Final verdict

Worth considering if you’re looking for daily wireless earbuds that combine auto-adjusting ANC, app customisation, and a battery life claim of up to 50 hours. The combination of LDAC compatibility and “Hi-Res Sound” positioning also makes them more interesting than purely budget ANC alternatives.

It might not be a great match if you want very specific ANC behaviour you can’t verify from limited detail, or if you prefer not to spend time setting up sound preferences in an app.

Mini FAQ

1) Do the Space A40 automatically change the noise cancelling level?

They’re designed to detect external noises and automatically adjust the noise cancelling level to suit your surroundings, with a claim of up to 98% noise reduction.

2) How long do they last on one charge?

The provided figure is up to 50 hours of playtime, with fast charging that gives 4 hours from a 10-minute charge.

3) Are they good for sound quality, or just noise cancelling?

They’re pitched for sound quality as well, including double-layer diaphragm drivers, “Hi-Res Sound”, and LDAC compatibility.

4) Do they come with different ear tips?

Yes, they’re described as coming with various earbud sizes to help you find a secure, comfortable fit.

5) What does the app actually do?

The app is described as allowing personalisation of sound settings and helping you control functions such as play, pause, and volume.