Bathys

The Focal Bathys is a pair of 0.77 lb closed-back over-ear headphones using 40 mm dynamic drivers, with a stated frequency response of 5 Hz–50 kHz and active noise cancelling and 42 hours of battery.

Type: Over-ear
Frequency: 5 Hz–50 kHz
Weight: 0.8 lb · 350 g
Impedance: Not published

What the data says

Lighter than 100% of the 12 other headphones we list in the 45–55 kHz range.
Lowest in-stock price is 6% below list price this week.

Computed from the specs below. How we write summaries.

Full specs

Last verified Oct 5, 2026

Focal’s own site doesn’t allow automated reading, so specs, prices and photos come from Headphones.com’s product page (headphones.com), a retailer that sells it. Unless marked otherwise, every spec is quoted from that page.

Sound
Frequency response	5 Hz–50 kHz
Driver	Dynamic
Driver size	40 mm

Fit & build
Type	Over-ear
Back	Closed-back
Weight (manufacturer)	0.77 lb (350 g)

Wireless
Connection	Wired, Bluetooth, USB-C
Bluetooth codecs	SBC, AAC, aptX, aptX Adaptive
Battery (one charge)	42 hours
Active noise cancelling	Yes
Transparency mode	Yes
Multipoint	Yes
Microphone	Yes

Other
Colors	Black, Dune
Built for	Travel
Warranty	2 years

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