Battery capacity: 210mAh, can light up for about 10 hoursSeven-color slow change models light mode: open the toggle switch that automatically slow color changeSeven color controllable upgrade light mode: seven color constant light / breathing / flashing / flowing water, etc.(can be fixed monochrome can also automatically change color)Use 1: glasses with a good battery, first open the package and take out the glasses, the key in the glasses on both sides. 2: press the key, press the red light. Then press the seven monochrome, seven monochrome pressed and then press the flash.Then press the seven-color automatic color changing breathing light, and then press the seven-color automatic color changing, and then the seven-color automatic color changing plus flashing,Press again to shut down, this cycle, any mode long press five seconds can also be shut down.Cautions :1: When installing the battery, please pay attention to the positive and negative direction of the battery, negative pole facing inward, positive pole facing outward.2: If not used for a long time, please remove the battery.