Sony Wireless Bluetooth lightweight design compatible with dedicated app and settings for customizable sound small WH-CH520 Headphones compatible,

With a well-balanced sound from high to low frequencies, you can enjoy natural, clear vocals and instruments. Furthermore, Sony's proprietary "DSEE" technology compensates for the high frequencies that are often lost in compressed audio sources, bringing them to CD-quality sound within the headphones. Audio sources compressed via streaming playback, MP3, Bluetooth transmission codecs, etc. are reproduced with a wide, expansive sound. It is compatible with the dedicated app "Headphones Connect," and by using the "equalizer" you can customize the sound quality to your liking. You can choose from eight presets such as "Relaxed" and "Bass Boost," or customize the equalizer settings to your liking. The ear pads are made of smooth, wrinkle-free, low-resilience urethane foam, which is soft and comfortable to the ear, providing a lightweight and comfortable fit. Up to 50 hours of music playback is possible.(*) It also supports quick charging, which allows approximately 1.5 hours of playback with a 3-minute charge (approximately 5.5 hours with a 10-minute charge).(*) Hands-free calling (*) is possible with smartphones, iPhones, and PCs. * The smartphone, iPhone, or PC must be equipped with Bluetooth and support HFP or HSP. Compatibility may vary depending on the software and environment you use.