Focal Bathys Wireless Headphone Review (2024)

While the Bathys will get you a not-too-shabby 16-bit / 44.1kHz over Bluetooth, it'll give you get more in USB DAC mode.

When you switch to USB DAC mode, you can use a USB cable and stream music from your phone or computer to enjoy 24bit/192kHz resolution, without Wi-Fi or Bluetooth. You're bypassing the DAC in your device in favor of the DAC in the Bathys. Focal has not provided details on the DAC chip, so I don't have further information.

Now, 24/192 is pretty good, but what if you want something higher? Let's say you have DSD files and you need a DAC that will read those. You also want to keep things as lightweight and portable as possible. You could listen to the Bathys using the Clarus CODA USB DAC connected to your phone. Simply turn off USB DAC mode on the Bathys to override the internal DAC.

Something to note is that you cannot use the Bathys with a digital audio player in USB DAC mode. Almost all computers, phones, and tablets have the ability to control the volume on the source device. However, DAPs are not designed to control the volume when outputting a digital signal as a source to an external DAC. The preamp section, which is in most cases analog, is obviously bypassed when using the device to output digital. Now, DAC chips do have the ability to control the volume in the digital domain, but analog preamp stages sound better in most cases. Thus most of the DAPs out there don't control volume this way. Thus you can only use the Bathys with a DAP via a wired headphone cable connection or via Bluetooth wirelessly.

Focal & naim App

You'll find the app under Focal & naim in the Google Play Store and Naim in the Apple App Store. You can set the LED backlight to on, dim, or off; choose your NC settings, and access EQ. You can also view battery level and see the audio track of the track being played.

Clear Voice Capture

The Bathys has microphones that use Clear Voice technology. If you receive a call while listening to music, the music will pause and your ring tone will come through your headphones. To answer an incoming call, press the multifunction button on the right ear cup. To hang up, press the same button. If you want to reject an incoming call, press and hold the multifunction button for 2 seconds.

Active Noise Canceling

The Bathys features two noise canceling modes. Silent mode is designed for planes, trains, and other environments when maximum sound blockage is desired. Does this mean you won't hear any ambient sound at all? Not necessarily, but noise will be drastically reduced. And with noise cancellation, the louder the outside sound, the more the headphones will be working to block it. The other mode is soft mode, which is recommended or when you need to focus at home or in the office, but you need to maintain some outside awareness. In this case, outside sounds will be muted, but not cancelled. You also have the option of transparency mode, allowing you to hear sounds around you when needed.

Bluetooth 5.1

The Bathys is compatible with SBC & AAC (standard) and Apt-X & Apt-X Adaptive (hi res) codecs for a choice of connectivity modes (Bluetooth, Jack, USB). Focal cites a range of greater than 15m

Aluminum-Magnesium Driver

The Bathys uses a 40mm aluminum-magnesium driver with M-shaped dome like the one introduced in the Focal Clear Mg headphones. Magnesium lends warmth to the sound.

Long Battery Life

You will get about 30 hours of battery life in Bluetooth Noise Cancelling mode. That rises to 35 hours in jack mode and 42 hours in USB DAC mode. The ruling is out on battery life in USB mode vs Bluetooth mode. Which will drain the battery more quickly, Bluetooth is higher resolution? We don't know.

A Note About Charging

The Bathys can only be charged when it is in the "ON" or "OFF" position. You cannot charge the Bathys in USB DAC mode.

The Focal & naim app is available in the Google Play Store or the Apple App Store.

1) Download the FOCAL & naim app.

2) Make sure you on the "Focal" welcome screen; if not, swipe from the Naim welcome screen.

3) Click "setup new device."

4) Select the Bathys headphones.

5) Make sure your headphones are switched on and are in Bluetooth pairing mode.

6) You may now use the app to set noise cancelling mode, control the backlight on the ear cups, access EQ settings, view headphone battery level, and view the audio format of whatever track you are listening to. Firmware updates are also available through the app.

So, how does the Bathys compare to the other wireless noise-cancelling headphones that Moon Audio sells, theSony WH-1000XM5and theSennheiser Momentum 4?

Let's look at the Sony WH-1000XM5. When it comes to noise cancellation, you'd be hard-pressed to find anything better than Sony. The Sennheiser Momentum 4 boasts incredible battery life - up to 60 hours with Bluetooth and with ANC. That's double the XM5 and the Bathys in ANC mode.

How about theAnanda BT, which is a wireless headphone that doesn't have ANC or a headphone jack? The Ananda BT can output 24/96 over Bluetooth. The Bathys only does 44.1 over Bluetooth. However, the Bathys does what these three headphone cannot do, and that is output 24bit / 192kHz in USB DAC mode. While the Bathys might not have all of the bells and whistle features of the XM5 or the Momentum 4, it is clear that Focal invested in sound quality when it came to the Bathys.

To test the Bathys with a wired connection, I chose a Bronze Dragon Portable Headphone Cable. This is a silver-plated UP-OCC copper cable that combines attributes of both our Silver Dragon and our copper-based Bronze Dragon portable cables. You get the boost in detail, clarity, and top-end sizzle from the silver, plus the added body and weight from the copper. For USB DAC mode, I used a Silver Dragon USB cable to connect the Bathys to my computer. This is one of Moon Audio's top-selling cables, and it gives an incredible boost in clarity - you can think of it as "cleaning" the sound for an unimpeded signal path.

Why Dragon Cables?

Generally, stock audio cables are manufactured with subpar materials, metals with impurities, poor geometries, and an overabundance of layers to make them look and feel like a fire hose. Inconsistency and lack of quality control in stock cables can lead to poor sound quality and a veiled sound vs what the musician intended for you to hear and feel from the music. Dragon cables are handcrafted with the highest standards and made to order according to your specific needs. At Moon Audio, we create a custom cable for you using the highest quality UP-OCC silver or copper conductors that can be manufactured. UP-OCC metals are void of impurities and are optimized for signal transfer and sound quality. We have one of the largest collections of audio and headphone connection options available online and we create limitless audio cable options depending on your specific gear and needs.

TheFocal Bathysis a versatile wireless headphone whose sound quality will make you question whether it is, indeed, a wireless headphone. What makes it stand out over other ANC headphones is the USB-DAC mode, which can offer up to 24-bit, 192 resolution. And it sounds pretty spectacular over Bluetooth. The Bathys has a neutral-warm signature that's reminiscent of the Focal Clear Mg and the Focal Celestee; it's got heft and some liveliness to it. The bass is deep and satisfying, the mids are clear and detailed, and highs are sweet and smooth. The sound signature is going to suit a variety of genres, from Rock 'n' Roll and blues to pop and jazz. Add a Bronze Dragon Portable Headphone Cable for a boost in bottom end and added musicality for a prefect portable sound wherever you are. Want to watch movies while you’re traveling? The Bathys will give you a big, exciting sound that puts you in the middle of the action. Want to use the Bathys for gaming? Absolutely! It doesn't have tap controls that many other wireless headphones have incorporated, but I suspect that's because Focal is attempting to differentiate the Bathys from more mainstream, consumer offerings. As well it should; the Bathys is a step above. At $799, it's double the cost of the latest wireless, ANC headphones from Sony and Sennheiser, but soundwise, there's simply no comparison..

• Bathys headphones
• Rigid carrying case
• 2 cables: one 4ft (1.2m) Jack cable and one 4ft (1.2m) USB-C® cable
• Quick start guide
• Branded content