Olivivi committed to provide customers with products of good quality. If you have any question about Olivivi portable blender you bought, contact us, we\'ll help you! Specification: Rotation speed: 22000rpm±15% Battery Capacity: 4000mAh Charging Hours: 2~3 hours Bottle Capacity: 14oz (380ml) Blender Weight: 1 lb (470g) Temperature: Below 80℃/176℉ Package included: 1 x Olivivi Portable Blender 1 x Micro USB Charging Cable 1 x Strainer 1 x Cleaning brush 1 x User Manual Light: Red: charging Blue: fully charged Red and blue flashing: personal size blender jar isn\'t aligned with base. To fix this, please line up the the arrow on the jar with the switch on the base. Tips: Please charge Olivivi personal blender before your first use. Please cut fruit into small pieces(ahout 1 inch), if you like smoothies, small ice cube is better to blend. Please put this product beyond the reach of children. Please don\'t use fruit blender when charging. Please don\'t pour hot liquids over 80 degree(176℉), which will cause damage or leakage. Please don\'t put smoothie blender into a dishwasher. To get more information, please read user manual.