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Sony
Sony RF400
Key specs
Battery Life Wireless
20 hBelow average20 h
11 h100 h
below average for over-ear headphones — based on 150 of 240 we've cataloged.
Connection Type
Wired-3.5mm48%Bluetooth44%Wired-usb-c7%Others1%
Bluetooth appears on 44% of the 215 over-ear headphones we've cataloged (of 240).
Battery
- Battery Life Wireless
- 20 h
- Battery
- Yes
Connectivity
- Connection Type
- Bluetooth wireless
Sound
- Acoustic Design
- Closed-back
- Driver Size
- 39.7 mm
- Driver Type
- Dynamic driver
- Impedance
- 32 Ω
- Noise Cancellation Type
- Passive
Design
- Color Options
- Black
- Ear Pad Type
- Soft material
- Foldable
- No
Microphone
- Microphone
- No
Features & Opinions
More from the team ›Commentary and deep dives from the SoundGuys editorial team.
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Christian ThomasEditor-at-large5 ways headphones are going to change in 2027Here's where things are headed.Christian ThomasEditor-at-largeWired vs wireless headphones: Which should you buy?Wired headphones do not automatically sound better.
Tom TriggsContributor
Christian ThomasEditor-at-large5 ways headphones are going to change in 2027Here's where things are headed.Christian ThomasEditor-at-largeWired vs wireless headphones: Which should you buy?Wired headphones do not automatically sound better.Tom TriggsContributorMore Over-Ear Headphones
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