Notes:1.Turn on the smart ball: short press the on-off key2.Switch mode: After turning on the smart ball, long press the power button3.Smart mode (the blue indicator light stays on for 3 seconds), automatically enters standby mode after running for 5 minutes, reactivates the ball to turn on after slapping. Specifications:Material:ABS/SiliconeDiameter:About 1.69in / 4.3cmBattery capacity:80mAhBattery life:About 30-40 minutes on a full charge Package Contents:1x Smart Ball1x Type-C Cable About Charging:1.Blinking red light: battery is too low and needs to be charged2.Blinking blue light: the product is charging3.The green light stays on: charging is complete, please fully charge it for the first time.