The number 1 in classical music and hi-fi. It is a benchmark in the field of classical music and hi-fi, as well as the distinction it awards to the best devices each year
What Hi-Fi? 5 stars
A global reference, What Hifi? is one of the most comprehensive magazines covering Home Cinema and Hifi.
The "5 stars" award distinguishes the highest quality products, according to this British magazine.
Focal Bathys MG: a wireless headphone enhanced by magnesium
Focal unveils Bathys MG, a Bluetooth headset equipped with active noise cancellation and designed to deliver faithful, precise sound reproduction. This model is built around drivers developed by the French brand, renowned for its acoustic expertise. Combining exclusive technologies, optimized electronics, and meticulous design, it aims to accompany users in their everyday listening, on the move as well as at home.
A refined, ergonomic design inspired by Focal’s craftsmanship
The Bathys MG sports an elegant design reminiscent of Focal’s high‑end wired models, showcasing the brand’s acoustic know‑how. Its headband in genuine leather and microfiber ensures optimal comfort, while the use of magnesium for the yoke and aluminum for the main structure guarantees robustness and lightness. The earcups feature the backlit Focal logo, adding a touch of sophistication. The use of premium materials reinforces the product’s upscale appeal.
The easily replaceable ergonomic earpads provide excellent acoustic isolation and adapt to each user’s morphology. Despite its 350‑gram weight, the Bathys MG remains comfortable for long listening sessions, though some users may find it a bit heavy after several hours. It is designed to accompany you on the go.
An audiophile “Made in France” sound signature
At the heart of the Bathys MG are 40 mm magnesium “M”‑dome drivers, manufactured in France in Focal’s workshops. Derived from Focal’s high‑end models, these transducers deliver natural, precise sound reproduction. The Bathys MG’s sound signature is characterized by impactful bass, detailed mids, and crystalline highs.
The frequency response extends from 10 Hz to 22 kHz, covering the entire audible spectrum, with total harmonic distortion below 0.2% at 1 kHz. This technical performance translates into a wide soundstage and captivating dynamics, making the Bathys MG one of the best‑performing wireless headphones in acoustic terms.
Connectivity and versatility for total listening freedom
The Bathys MG stands out for its versatile connectivity. It uses Bluetooth 5.2 with multipoint support, allowing you to connect two devices simultaneously. Pairing is simple and fast. Supported audio codecs include SBC, AAC, aptX, and aptX Adaptive, ensuring optimal compatibility with a wide range of devices.
The distinctive feature of the Bathys MG lies in its USB‑DAC mode, which allows high‑resolution audio playback up to 24‑bit / 192 kHz when connected to a compatible computer or smartphone. This mode bypasses the source device’s audio processing, delivering superior sound quality.
For purists, the headphone can also be used in wired analog mode via its 3.5 mm jack input. It is worth noting that even in this mode, the Bathys MG applies slight equalization to maintain its characteristic sound signature.
Noise reduction and smart features for a personalized immersion
The Bathys MG’s active noise‑cancelling (ANC) system uses eight microphones to analyze and neutralize ambient noise. While effective, it does not quite rival the very best on the market in terms of sheer efficiency. However, Focal has prioritized a balance between isolation and preservation of sound quality.
Three modes are available: “Silence” for maximum reduction, “Soft” for moderate attenuation, and “Transparency” to remain aware of your surroundings. The headphones are easily controlled via the Focal & Naim app, compatible with iOS and Android.
The app lets you tailor the sound to your liking using the equalizer (preset or custom settings), adjust it depending on your listening environment, and manage noise reduction with the Silent, Soft, or Transparent modes. It also offers a hearing test to adapt sound reproduction to each user.
Battery life and charging for extended, hassle‑free listening
Battery life is one of the Bathys MG’s strong points. It delivers 30 hours of battery life in wireless use, 35 hours in Jack mode, and 42 hours in USB‑DAC mode. Its fast‑charging function provides an additional 5 hours of listening in just 15 minutes.
This energy performance places the Bathys MG among the leaders in its category, ensuring extended use without the constraint of frequent recharging.
What the press says
Even more audiophile than its predecessor, the Focal Bathys MG portable headphones are an acoustic marvel. Unfortunately, this optimization comes with a significant price increase, while the technological features remain stagnant, barely worthy of a mid-range portable headset.
Automatically translated — Show original (French)
Encore un peu plus audiophile que son prédécesseur, le casque nomade Focal Bathys MG est une merveille acoustique. Malheureusement, cette optimisation passe par une hausse tarifaire conséquente qui n’empêche pas une stagnation de la partie technologique, à peine digne d’un casque nomade de milieu de gamme.
The Bathys MG is undeniably a high-end NC headset, positioned above its mainstream competitors. This higher price is reflected in a noticeably more elegant design and a build quality that appears more durable. The Bathys MG also delivers excellent sound, true to Focal’s hi-fi DNA and values. There are no compromises on functionality either, as the noise cancellation eliminates much of the ambient noise and the battery life of this improved Bathys is exceptional.
Automatically translated — Show original (French)
Le Bathys MG est indéniablement un casque NC haut de gamme, mieux placé que ses concurrents grand public. Ce surcoût se traduit par un design nettement plus élégant et une qualité de fabrication qui semble plus durable. Le Bathys MG offre également un excellent son, fidèle à l'ADN et aux valeurs hi-fi de Focal. Sans compromis sur les aspects fonctionnels, d'ailleurs, car la réduction de bruit supprime une grande partie du bruit et l'autonomie de la batterie de ce Bathys amélioré est exceptionnelle.
Focal’s second wireless ANC headphones continue the luxury feel, with a more comfortable design, long battery life, more refined sound and very good call quality. [...] ANC isn’t quite to the same level however, and those in need of a more emphatic bass performance should probably look elsewhere. [...] The buttons are the same, which is a little disappointing. For a premium pair of headphones, the controls don’t feel too premium.
Genuine leather and microfiber headband for comfort, softness, and refinement
Magnesium yoke offering strength and lightness
Aluminum construction for optimal durability and increased reliability
Distinctive and modern backlit logo design
Weight: 350 g
Audio Technology
40 mm magnesium drivers with “M” profile dome, made in France
Natural and highly precise sound reproduction
Impactful bass and crystal-clear treble
Active noise-canceling technology
Full immersion in music or connection to the environment depending on the mode
Frequency response: 10 Hz to 22 kHz
Harmonic distortion rate: <0.2% @1 kHz
USB-DAC mode: high-resolution sound up to 24-bit / 192 kHz
Connectivity
Bluetooth 5.2 Multipoint technology
Bluetooth range: >15 m
Bluetooth frequency band: 2402 MHz - 2480 MHz
Audio codecs: SSBC, AAC, aptX Adaptive, aptX
Connections: Bluetooth / 3.5 mm Jack / USB-C
Google Fast Pair
Battery Life
30 hours in Bluetooth mode with active noise canceling
35 hours in Jack mode
42 hours in USB-DAC mode
Fast charging: 15 minutes for an additional 5 hours of battery life
Comfort and Ergonomics
Ergonomic and easily replaceable ear cushions
Optimal acoustic insulation
Custom comfort
Lightweight and ergonomic design suitable for travel
Focal & Naim app compatible with iOS and Android
Precise equalizer adjustment
Personalized headphone control
Technical Specifications
Type: Closed-back wireless headphones with active noise canceling
Microphones: 8
Included carrying case dimensions: 24 x 21 x 7 cm
Included Accessories
Rigid carrying case
2 cables:
1.2 m Jack cable
1.2 m USB-C cable
Quick start guide
Frequently Asked Questions
How does the Bathys MG’s sound quality compare with Focal’s high‑end wired models?
+
Although the Bathys MG does not reach the level of the very top wired models such as the Focal Utopia, it offers outstanding sound quality for a wireless headphone. The magnesium transducers give it a sound signature close to wired models, with slight coloration due to digital processing.
How effective is the active noise cancellation in real‑world use?
+
The Bathys MG’s noise reduction is effective at attenuating constant background noise such as airplane hum or public transport noise. It is not as efficient as the market leaders with sudden noises or voices, but offers a good balance between isolation and preservation of sound quality.
How does the USB DAC mode work and what are its benefits?
+
USB DAC mode allows you to use the Bathys MG as an external digital‑to‑analog converter. By connecting it to a compatible computer or smartphone via USB‑C, it can handle high‑resolution audio files up to 24‑bit / 192 kHz. This mode bypasses the source device’s DAC, which may be of lower quality, for better sound reproduction.
Can the headphones be used while charging?
+
Yes, the Bathys MG can be used while charging in wired mode (3.5 mm jack) or USB‑DAC mode. However, Bluetooth mode is not available during charging.
User reviews
Jean
A headset that can be used on the go or at home. Beautiful materials, excellent build quality, and a comfortable fit. In Bluetooth mode, the sound reproduction is already at an excellent level. With a wired USB‑C connection, it becomes possible to enjoy the high‑definition files from my QOBUZ subscription. It’s a chameleon‑like headset, capable of adapting to different situations. This headset can easily compete with some fine wired models while also offering the advantages of wireless when needed. Its sound signature is quite distinctive (with well‑present bass), but it also delivers a very good level of detail on good recordings. On top of that, it’s made in France and comes with a very practical carrying case and two cables: USB‑C and mini‑jack. An almost perfect headset… An absolute must‑hear and must‑try! Jean
Comment from January 01, 2026 — Experience from December 21, 2025
Automatically translated — Show original (French)
Casque pouvant être utilisé en situation nomade ou sédentaire. Beaux matériaux, belle fabrication et casque confortable. En connexion Bluetooth la restitution sonore est déjà d’un excellent niveau. En filaire USB C il devient possible de profiter des fichiers haute définition de mon abonnement QOBUZ. C’est un casque caméléon capable de répondre à différentes situations. Ce casque rivalise sans problème avec quelques beaux casques filaires tout en offrant les avantages du sans fil si nécessaire. Sa signature sonore est assez marquée ( basses bien présentes) mais il offre également un très bon niveau de détails sur de bons enregistrements. De plus il est fabriqué en France et il est livré avec un étui de transport bien pratique avec deux câbles USB C et mini jack. Le casque presque parfait…
À écouter et à tester absolument !
Jean
Jean-François
This stylish, well-finished, modern-looking headset replaces my old 2014 Focal Spirit Classic with a much better build quality. As for the sound, it’s excellent as usual with Focal (I also own ARIA 936, 906, CC900 speakers and a Sub1000F subwoofer). Bluetooth pairing is simple and fast and delivers excellent sound quality, but it’s even better over USB (the headset’s DAC is flawless). The noise cancelling works well, although I’ve seen better (I wouldn’t use it anyway, I prefer in-ear monitors when I’m on the move). The Focal app doesn’t go in for frills, but everything essential is there.
It’s an excellent product, a bit expensive, but I still recommend it, with a word of caution for mobile users due to the slightly high weight of the device.
Comment from December 19, 2025 — Experience from December 08, 2025
Automatically translated — Show original (French)
Ce casque élégant, bien fini et au design moderne vient remplacer mon vieux focal spirit classic de 2014 avec une qualité de fabrication bien meilleure. Côté son c'est excellent comme d'habitude avec Focal (je possède aussi des enceintes ARIA 936, 906, CC900 et un caisson Sub1000F) la connexion en bluetooth est simple et rapide et délivre un son d'excellente qualité mais c'est encore meilleur en USB (DAC du casque nickel). La réduction de bruit quant à elle fonctionne bien même si j'ai déjà vu mieux (je ne m'en servirais de toute façon pas, je préfère des intra-auriculaires en déplacement), l'appli focal ne fait pas dans la fioriture mais l'essentiel y est.
C'est un excellent produit, un peu cher mais que je recommande avec malgré tout une attention pour les utilisateurs nomades du fait du poids un peu élevé de l'engin.
Patrick
The do-it-all headset, and a looker too! With its Bluetooth, wired, and USB DAC connectivity, it covers every need. And the sound is there. It’s Focal, after all...
Comment from December 10, 2025 — Experience from November 24, 2025
Automatically translated — Show original (French)
Le casque à tout faire en beauté !
Avec sa connectivité bluetooth, filaire et USB DAC, il répond à tous les besoins.
Et le son est là. C'est du Focal, quoi...
To better understand our visitors, measure marketing effectiveness and personalise ads, we and our partners use cookies and mobile advertising identifiers on your device. This data makes it possible to display personalised and non-personalised ads and measure their performance. Some cookies, which are technically necessary, are exempt from consent. You can accept those that require your consent, refuse them by clicking "Refuse", or customise your choices via the settings screen.
To find out how Google uses the data collected once you have given your consent, see Google’s Business Data Responsibility site.
You can change or withdraw your consent at any time via the "Consent and cookies" link. Your choices will apply on our site for 12 months.
