Dominique
Aesthetically pleasing quality products, very good, I recommend
Comment from June 28, 2026 — Experience from November 30, 2023
Automatically translated — Show original (French)
Produits de qualité esthétique, très bien, je recommande
Specifications and features
Awards
Diapason d'Or
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
Focal Bathys Dune: the wireless headphones with active noise cancellation
Bathys is much more than just a wireless headset. It embodies Focal’s excellence in audio technology. Its French-made Aluminium/Magnesium “M” dome drivers deliver unrivalled sound quality. You can expect detailed, precise and dynamic sound reproduction with every listen.
Bathys’ active noise cancellation immerses you in deep silence, allowing you to fully immerse yourself in your music, films or phone calls. With over 30 hours of battery life, these headphones are ready to follow you wherever you go.
Premium design for unrivalled comfort
Bathys’ design is inspired by Focal’s high-end headphones, something that is apparent at first glance. Premium materials such as Magnesium for the yokes, genuine leather for the headband and Aluminium for a robust construction are used to ensure unrivalled comfort, whatever the shape of your head. The headphones’ light weight, compactness and perfect fit make them an ideal travel companion.
Sound customization
Focal has added an innovative new feature to Bathys: the Mimi hearing test. Thanks to the Focal & Naim app, you can configure the headphone sound according to your hearing. Bathys thus adapts to your unique hearing to offer you a personalized audio experience. Whatever the results of your test, you can fully enjoy Focal sound.
High-fidelity sound and advanced features
Whether you choose the Dune or Black Silver finish, Bathys delivers the same exceptional audio performance. With Focal’s expertise in acoustics and high-end headphone manufacturing, these headphones deliver pure hi-fi sound in multipoint Bluetooth 5.1 or wired mode thanks to the built-in USB-DAC mode, offering resolution up to 24-bit/192 kHz.
The Aluminium/Magnesium drivers ensure deep bass, smooth treble and crystal-clear voices. The noise cancellation technology offers a “Silent” mode for noisy travel and a “Soft” mode to promote concentration at home. Bathys is also equipped with voice assistants, an adjustable equalizer, various connectivity options (Bluetooth, Jack, USB) and offers over 30 hours of battery life. A quick 15-minute charge gives you an additional 5 hours of listening time.
Key points to remember
- Portable Bluetooth headphones with active noise cancellation
- French-made Aluminium/Magnesium “M” dome drivers
- USB-DAC mode offering resolution up to 24-bit/ 192 kHz
- Over 30 hours of battery life in Bluetooth® mode with active noise cancellation
- Quick charge: 5 additional hours of listening time in 15 minutes
- Built-in Amazon Alexa and Google Assistant voice assistants
- Clear Voice Capture microphone technology for crystal-clear phone conversations
- App for personalized settings: equalizer, music controls, and much more.
What the press says
Focal does not intend to target mere technophiles, but rather an audience interested in a premium, even luxurious product. The construction is thus most impressive. The structure is made of aluminum, the yokes of magnesium. The headband is covered with leather on top and microfiber underneath.
Automatically translated — Show original (French)
Focal ne compte pas s'adresser aux simples technophiles, mais à une cible intéressée par un produit premium, voire luxueux. La construction est ainsi des plus impressionnantes. La structure est en aluminium, les branches (yoke) en magnésium. L'arceau est recouvert de cuir sur le dessus et de microfibre en dessous.
Although it leaves us with a very good overall impression, driven by its sound performance, the Focal Bathys will fully satisfy a specific audience that is primarily looking for a great listening experience, even if it means sacrificing some features.
Automatically translated — Show original (French)
Bien qu’il nous laisse une très belle impression générale, portée par ses performances sonores, le Bathys de Focal apportera pleine satisfaction à un public spécifique, qui cherche avant tout une grande expérience d'écoute, quitte à sacrifier quelques fonctionnalités.
Technical Specifications
Main Features
- Type: Closed-back wireless headphones with active noise cancellation
- Speakers: “M” profile dome 40 mm aluminum-magnesium, made in France
- Voice Assistants: Google Assistant, Amazon Alexa
- Other Features: Google Fast Pair
- App: Focal & Naim, compatible with iOS and Android
- Active noise cancellation technology and transparency mode
- Connections: Bluetooth, 3.5 mm mini-jack, USB-C
- Microphones: 8
Construction
- Cushions ensuring isolation and comfort for all morphologies
- Slim headband in genuine leather and microfiber
- Mechanical construction in aluminum
Bluetooth Connectivity
- Type: 5.1 multipoint
- Range: > 15 m
- Frequency Band: 2,402 MHz - 2,480 MHz
- Audio Codecs: SBC, AAC, aptX Adaptive, aptX
Audio Performance
- Frequency Response: 15 Hz to 22 kHz
- Harmonic Distortion Rate: < 0.2% at 1 kHz
Battery Life
- 30 h in Bluetooth mode
- 35 h in mini-jack mode with noise cancellation
- 42 h in USB Digital-to-Analog Converter (USB DAC) mode
Physical Characteristics
- Weight: 350 g
- Carrying case included: 24 × 21 × 7 cm
User reviews
Didier
Here’s my take after several months of use.
The smartphone app is easy to use and seems to work well.
The battery holds a charge well, giving us great runtime.
On the sound side, nothing’s been overlooked—superb, well-detailed audio.
The big downside is the comfort of the ear pads, or at least their not-so-large size. I can fit my ears inside, but at the expense of comfort.
Comment from October 14, 2025 — Experience from December 26, 2024
Automatically translated — Show original (French)
Voici mon avis après plusieurs mois d'utilisation.
L’application sur le smartphone est facile a utiliser et semble bien fonctionner.
La batterie tient bien la charge, ce qui nous fait une belle autonomie.
Coté son, rien n'est délaissé, un superbe son bien détaillé.
Le gros point négatif est le confort des coussinets ou du moins la taille qui n'est pas grande. Je peux y rentrer mes oreilles au détriment du confort.
L’application sur le smartphone est facile a utiliser et semble bien fonctionner.
La batterie tient bien la charge, ce qui nous fait une belle autonomie.
Coté son, rien n'est délaissé, un superbe son bien détaillé.
Le gros point négatif est le confort des coussinets ou du moins la taille qui n'est pas grande. Je peux y rentrer mes oreilles au détriment du confort.
François-Xavier
By way of comparison with a nearly 40-year-old wired HD 540 Reference, this wireless model is exceptional in terms of perceived "liveliness": the bass is impressive, the rest of the spectrum is well layered—maybe a tad less "airy" than the 540, if that—but there's more body. The built-in DAC is a plus; Bluetooth is excellent as well. There's no listening fatigue despite it being a closed-back headphone. In short, this headphone is a little gem. Bravo.
Comment from September 10, 2025 — Experience from January 26, 2024
Automatically translated — Show original (French)
A titre de comparaison avec un filaire HD 540 Référence de presque 40 ans, ce sans fil est exceptionnel en terme de "vie" ressentie, les basses sont impressionnantes, le reste du spectre bien étagé, peut être un poil moins "aéré" que le 540, et encore, mais il y a plus de matière. Le dac interne apporte un plus, cependant le Bluetooth reste excellent. Il y n'y a aucune fatigue ressentie du fait que cela soit un casque fermé. Bref, c'est un petit bijou ce casque. Bravo.
- Eco-contribution of €0.12 included in the sale price.
- Manufacturer reference: FOAHALNOMB0G500
- GTIN / EAN: 3544055727163
