Soundcore Space A40 Noise Cancelling Earbuds
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well-rounded ANC earbud with genuinely long battery life and adaptive noise control that does not need to be tuned by hand.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0B1LVC5VZModel: A3936Category: Earbud Headphones
Colors Available
Need a different one? Pick on Amazon →
Overview
The Soundcore Space A40 is Anker's adaptive noise cancelling earbud, reducing outside noise by up to 98 percent and adjusting the cancellation level automatically based on the environment. Playtime runs to 50 hours across the earbuds and charging case, with a 10 hour single charge and wireless charging support.
Unlike a fixed noise cancelling mode, the A40 samples the surrounding sound and picks a cancellation level on its own, which matters more on a commute that alternates between a quiet train car and a noisy platform than in one controlled environment. The double-layer diaphragm drivers and LDAC support also put it a step above earbuds built purely around noise cancelling, aimed at listeners who care about sound quality as much as quiet.
- Adaptive ANC cuts noise by up to 98%
- 50 hours combined playtime, 10 hours per charge
- Wireless charging case
- Hi-Res LDAC sound with double-layer drivers
Who it's for
Suited to commuters and travelers who want noise cancelling that reacts to changing surroundings without manual switching, and to listeners who want Hi-Res LDAC audio in a small earbud. Less suited to anyone who mainly needs earbuds for calls in a quiet office, where the extra tech is not doing much work.
Pros and cons
- Noise cancelling adjusts automatically to the environment
- 50 hour total playtime with the case
- LDAC support for Hi-Res Audio
- Smaller, lighter shape than earlier Soundcore ANC earbuds
- No official water resistance rating mentioned in the listing
- LDAC benefits require a source device that also supports it
Performance notes
Automatic noise cancelling works by detecting the type and level of ambient sound and selecting a matching cancellation profile, rather than relying on one fixed setting for every situation. Sound comes from double-layer diaphragm drivers tuned for bass, mids and treble, with LDAC mode available for Hi-Res Audio playback over a compatible source. Fast charging adds about 4 hours of listening from a 10 minute top-up in the case.
Specifications
| Brand | Soundcore |
|---|---|
| Model | A3936 |
Frequently asked questions
How does the Soundcore Space A40 adjust its noise cancelling automatically?
It detects the type of ambient noise around you, indoors, outdoors, commuting or flying, and selects a matching cancellation level without a manual switch.
What is the battery life on the Space A40?
Each earbud runs about 10 hours per charge, and the wireless charging case extends total playtime to roughly 50 hours.
Does the Space A40 support Hi-Res Audio?
Yes, it supports LDAC mode for Hi-Res Audio Wireless playback when paired with a source device that also supports LDAC.