Purchased around 2022, used for about a year and a half, and then stored because the battery in the left earbud stopped holding a charge. Please purchase only if you understand this. Manufacturer: SONY Product Name: LinkBuds S Color: Beige Model Number: WF-LS900N [From the manufacturer's website] • Fully wireless earbuds with high noise-canceling performance despite their small and lightweight design. They are designed to minimize protrusion from the ear and have a center of gravity close to the head, achieving a stable fit. • With noise canceling ON, the earbuds last up to 6 hours on a single charge, and up to 20 hours total with the charging case. • Supports quick charging, with 60 minutes of playback from a 5-minute charge. Features an "Ambient Sound (External Sound Capture) Mode" that allows you to listen to both audio content and surrounding sounds.