1MORE ComfoBuds Pro – Review

1MORE ComfoBuds Pro

1MORE ComfoBuds Pro True Wireless In-Ear Headphones

| 13.4mm Driver | True Wireless | ANC |

? 1MORE ComfoBuds Pro True Wireless In-Ear Headphones, the newest rich-featured TWS from 1MORE – also known as 1MORE ES901.

The 1MORE ComfoBuds Pro are a single driver true wireless headphone that carries a very large 13.4mm dynamic ultralinear driver per earpiece.

This TWS belongs to the new ComfoBuds line from 1MORE, preceded by the 1MORE ComfoBuds (1MORE ESS3001T)

Inside, each earpiece is also equipped with 6 microphones, Active Noise Cancelling technology (packing 4 different ANC modes), auto play/pause infrared sensors and touch sensitive controls on the lower section of the shells.

In addition to this, the earphones themselves carry a 50 mAh battery inside that can grant up to whopping 8 hours of continuous use on a single charge and nearly 30 hours when combined with the 450 mAh battery of the case.

To fully charge the unit it is needed 60 minutes while the case needs 2 hours to top-up.

Moreover, the unit can be quick-charged in 15 minutes, reaching 2 hours of playtime.

The 1MORE ComfoBuds Pro True Wireless In-Ear Headphones are available to buy in 2 colors:

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1MORE ComfoBuds Pro True Wireless In-Ear Headphones Review

Tests & Scores


Accessories & Packaging

The 1MORE ComfoBuds Pro True Wireless In-Ear Headphones come inside a very nice packaging with rugged build, book-alike side opening with magnetic closure and clean looking aesthetics.

Inside, users will find 4 pair of eartips, a soft-cloth carrying bag, 1x USB-C charging cable, a 1MORE sticker and a 2-piece silicone protective cover that can be attached to the case.




1MORE ComfoBuds Pro True Wireless In-Ear Headphones weight in Ounces and 1MORE ComfoBuds Pro True Wireless In-Ear Headphones weight in grams.

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Bass & Sub Bass

These 1MORE TWS headphones exhibit a fun, yet clean bass response that can provide sufficient punch for normal daily listening sessions.

In addition to this, sub-bass can offer enough deepness for many genres but will not be the most basshead-intensive option out there.

In fact, this TWS could be better classified in the tight-bass ranges than on the bass-boosted ones.

Consequently, the 1MORE ComfoBuds Pro will be a great alternative for people who prefer clean bass without bounciness and bleed – listeners who expect basshead sub-bass or bass-centered sound should looks elsewhere.

With an EQ, mid-bass showed an exponential increment of it’s punch while sub-bass was able to become deeper but basshead deepness should yet not be expected.


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1MORE ComfoBuds Pro case
1MORE ComfoBuds Pro True Wireless In-Ear Headphones case


Mids & Vocals

The 1MORE ComfoBuds Pro offer male vocals and lower mids with the right amount of warmth as to provide a coziness feel to it’s sound.

Despite this, the ComfoBuds Pro are able to preserve a substantially clean midrange without exhibiting neither excess of midbass bleed nor congestion.

The upper end of it’s mids have a crisp and clear sound with very alive female vocals and infrequent harshy spikes.

Applying a custom-tailored EQ, the ComfoBuds Pro showed an important fine-tuning capability with excellent lower mids results that can push them into a cleaner but still cozy sound.

As well, an EQ can be applied to smooth out the rare peaks without mudding it’s sound.



Highs & Treble

Highs of the ComfoBuds Pro present a brightish tuning that is not overboosted as to become disturbingly hot.

People worried about sibilance and piercing peaks might be interested in knowing that both of these issues are usually perceived with acceptable mildness (depending on each listener’s tolerance and sensibility)

Overall, their highs and treble are able to provide sufficient detail and clarity for everyday listening.

Using an EQ will squeeze out a way more detailed and spacious sound but might risk to feed their sibilance and piercing spikes.



Sound Leak

The brand did an excellent job keeping it’s leaking under control, allowing users to relax and crank up the volume as much as wanted without having to worry of any disturbance to nearby people.

We could even say that the 1MORE ComfoBuds Pro could classify for in-library use when keeping your volume moderately low.


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Sound Isolation

The 1MORE ComfoBuds Pro have a great passive isolation performance right out of the box but their isolation capabilities are exponentially empowered when activating it’s Active Noise Cancelling.

When measuring the ANC of the ComfoBuds Pro, this TWS provided a whopping maximum noise reduction of up to -41.7dB competing (if not surpassing) all industry-leading ANC headphones on the market – including wired and wireless variants.

In total, this TWS offers 4 ANC modes including: Noise Reduction Mild, Noise Reduction Strong, Wind Noise Resistance and Passthrough-Mode.

By default, ANC Mild and WNR are set right out of the box; in order to access the other modes or set different default choices, users need to use the 1MORE app either on Android and/or iOS devices.

In additions to this, this TWS headphone does not suffer from the notorious ANC hiss seen on most headphones with Active Noise Cancelling.


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The design of the unit has an in-ear form factor with elongated ends on the bottom.

The overall shape of the earpieces is noticeably rounded and smooth with no sharp edges nor any pain-inducing sections.

The curvy design combined with a fairly light weight and angled nozzles result in an outstandingly comfortable wearing experience while retaining a tight and secure fit.


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Response to Equalization

With a custom EQ, the 1MORE ComfoBuds Pro showed pristine response to fine-tune their midrange with excellent results and no cons.

Highs efficiently responded to custom equalization as well with minor issues with fatigue empowering (when overdone) while bass showed substantial boosting of it’s mid-bass and acceptable deepening of sub-bass.


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Frequency Response (raw)

1MORE ComfoBuds Pro True Wireless In-Ear Headphones Frequency Response Curve


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1MORE ComfoBuds Pro True Wireless In-Ear Headphones Technical Specifications


Driver Unit13.4mm
Impedance32 ohms
Frequency Response20-20,000Hz
DiaphragmUltralinear dynamic
Battery50 mAh + 450 mAh
Battery life28 Hours
ControlsTouch sensitive
WeightApprox. 5.2g

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Scores Scores

1MORE ComfoBuds Pro True Wireless In-Ear Headphones Scores

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1MORE ComfoBuds Pro True WirelessIn-Ear Headphones