Small but mighty powerful: This powerful battery-operated blender with 6 Blades ,can produce 10-12 cups per charge. Simply charge via USB port 2-3 hours before initial use, then add your ingredients and power-on for a tasty smoothie or shake in 90 seconds.  Simple and safe to use: Single-button operation makes this portable blender quick and easy to use. Built-in safety features prevent overheating and also ensure that the unit will not operate if components are improperly assembled.