New and open box. Never use and good condition. The return will be accept in two days after pay. Misfit Shine - Activity and Sleep Monitor Swimproof, aircraft-grade anodized aluminum disc,Misfit Shine is designed for use in water, it has a snap-shut back cover and requires an opening tool, refer user manual below White LED progress and time display Wirelessly syncs with paired smartphone to upload data Automatically tracks steps, distance, calories, and light and heavy sleep Non-charging, replaceable battery lasts up to 6 months. Please refer the Installation and the Battery replacement Video before use.