Start/stop the rolling ball: short press the switch key to switch modes: in the starting state, long press the switch key In smart mode (the blue indicator light is always on for 35), it will automatically enter the standby state after running for 5 minutes and activate it after tapping Normal mode (the green indicator light is on for 35) automatically shuts down after running for 5 minutes Blinking red light: The battery is too low and needs to be . Blinking blue light: Charging. Steady green light: Charging is complete. fully charge for the first use The soft and skin-friendly silicone wrap not only quietly, also increases friction and is more bite-resistant and durable. size: 4.3 x 4.3 x 4.3cm Material: ABS+Silicone colour: pink Package Contents: 1 x Rolling Balls 1 x Charging Type-C cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.