The SONY WH-CH520 wireless headphones—which appear to be what you mean by WH-H520—are lightweight, budget-friendly on-ear headphones that cost around $35 and offer up to 50 hours of battery life.
Key Features
- Battery Life: Lasts up to 50 hours on a single charge. A quick 3-minute charge gives you 90 minutes of playback.
- Sound Quality: Features DSEE technology to upscale compressed music files for better clarity. You can adjust the sound using the Sony Sound Connect app.
- Multipoint Connection: Pairs with two Bluetooth devices at the same time, such as your phone and laptop.
- Design: Lightweight on-ear build with soft ear pads and an adjustable headband. They come in black, white, blue, pink, yellow, and cappuccino.
- Microphone: Includes a built-in mic for hands-free phone calls and online meetings.



