Sony WH-CH520

Battery Life: Offers up to 50 hours of playback on a single charge.Quick Charging: A brief 3-minute charge provides approximately 90 minutes of playback.Sound Quality: Features Sony's Digital Sound Enhancement Engine (DSEE) to restore high-frequency sound lost in compression. You can further customize the sound via the Sony | Sound Connect app.Connectivity: Supports Multipoint Connection, allowing you to pair with two Bluetooth devices simultaneously and switch between them easily.Design: Lightweight at about 147g with a swivel design that allows the ear cups to lie flat for easier storage.