Leakproof milk storage Detachable cup Easy to clean Portable & Light Weight Use in car or usb power source 9 fluid ounces capacity Height: 8.8 inches tall Automatic temperature function Rapidly cools down breastmilk or formula (minimum 35.6 degrees F) Dimensions: 3.38 inches x 3.38 inches x 8.85 inches Will require 10000 mAh rechargeable battery power bank (not included with purchase) Keeps breastmilk cold for 3 hours once detached from power source New in box