Purchased in September 2025, hardly used. Charged only about twice, and kept in a separately purchased case, so I think it's clean. (It's not expensive, but I'll include the case) With warranty and cleaned. Manufacturer: Shokz Product: OpenDots ONE Black ---------------------- ・Shokz's new model "OpenDots ONE" is a completely wireless earphone that pursues "comfort without blocking the ears." ・Small and lightweight, with a design that allows you to hear natural sound and ambient sounds simultaneously. ・Comfortable to wear for long periods, suitable for any scene, such as running, commuting, housework, and telework. ・Up to 40 hours of playback, wireless charging compatible: Approximately 2 hours with a 10-minute quick charge, up to 10 hours of continuous playback with the earphones themselves on a full charge, and up to 40 hours with the case. ・Easy to use on the go with a pocket-sized charging case that supports wireless charging. ・Multi-function equipped, dedicated app: Automatic ear detection allows for wearing without distinguishing between left and right. ・Equipped with many convenient features such as automatic play/pause, AI noise-canceling calls, multi-point connection, and touch operation. ・The dedicated app allows you to freely adjust the sound with 4 preset EQs and 2 custom modes. ・Easy to set up touch operation, search for lost earphones, update firmware, and adjust prompt volume.