Clip. Features four selectable colors (glow/flash), color-changing Disc-O mode, and memory feature. Four colors of red, green, blue, or white. Push button on/off. Durable weather-resistant body. Memory feature automatically saves last color setting when you turn back on. Recharges in approximately 2 hours using micro USB cable (not included). Run time: 20 hours. Requires (2) CR2016 batteries (included). Hang packaged.