From the manufacturer

WH-CH520
All-day listening with quality sound
Wireless Headphones

Listen longer
Keep your music playing all day with a battery life that delivers up to 50 hours of power. USB Type-C quick charging gives up to 90 mins of play back from 3 minutes of charge. Now you’ll have enough power for multi-day road trips and long festival weekends.

Customized for all your music preferences
The EQ Custom feature on the Sony | Headphones Connect App tailors sound to your personal preference. Choose from a variety of pre-sets to match sound quality with the genre of music you’re listening to. Or create and save your own pre-sets

Designed to be lightweight
Designed with comfort in mind, the WH-CH520 headphones are lightweight and feature soft earpads, additional head cushion and silent joints so you can enjoy your favorite music and podcasts all day long.

Easy Hands Free-Calling
Conversation flows freely with easy hands-free calling, thanks to the built-in microphone. No need to even take your phone from your pocket.

Multipoint connection
For total convenience, these Bluetooth headphones can be paired with two Bluetooth devices at the same time. Simply switch from a video or song on your laptop to a call on your cellphone, so that you’ll never miss a call.

Swivel design
Swivel design for compact and easy carrying

Voice assisitant
Just say “OK Google” or “Hey Siri” to activate your preferred voice assistant.

Fast Pair
Easily find your missing headphones by sound or check their last known location in Google’s Find My Device app on your smartphone.

Digital Sound Enhancement
Boost the quality of compressed music files and enjoy streaming music with high quality sound through DSEE.
Pramod kumar Namdeo –
It is a very good headphone, I liked it very much, the body material is very beautiful, the sound is very good.
Raghav Mishra –
Very aesthetic. Not super loud like cheap boat headphones but audio is clear and satisfactory. Very comfortable compared to my boat headphones. You can wear it for 2 hours comfortably without any pain, after that it hurts a bit. I would recommend it, Sony is reliable
?chippie? –
The things I love about this headphones:- User friendly app to adjust audio modes- aesthetic looking “beige” color is spot on!!!- fits my ear well, not falling down while working out.- one full charge stays for a week (never ran out of battery while I was out)- buttons are designed so well.- lightweight ?- bass is well balancedI was looking for a headphones which is not on heavier bass and fits in my budget.Glad I found them!I don’t know how long the cushion lasts, hope I can find a replacement cushion?
Shantha Kumar –
Good sound quality as expected from Sony. The volume is a bit low.
AG –
Excellent sound and looks really good. Insane connectivity range and as nice warm sound.
Arun –
Price is too high and the product is just trash…You can suffer from pain in ears after some minutes of usage…..sound quality is good …not that much great …and more importantly don’t buy if you are looking for gaming field….it will completely disappoint you
Anuska –
Those who have wide cheekbones/head might find the speakers digging into your sides a little. But I think the more you use it the more you get used to it.No complaints about sound, connectivity, or build. Top notch. And really beautiful.
aakarsh goel –
Its fit is very good but i wanna say about the plastic used does not justify the price though its good but not that good. Cushion on ear are very good quality and sound on them is nice and decent vocals are very much clear and bass is also good if you don’t like heavy bass. If you want them to listen music. I would definitely recommend them.
Ankit mishra –
Now overall 15 days of using this actually battery and performance is mind blowing but Sometimes feel not enough sound, I think sound and their bass will be little bit more loud..
Placeholder –
i like sound and comfort but right side is slightly louder than left like when you play 50% volume right side on 50% and left side feel 47%