Smart Safety Protection: This portable blender has built-in safety features that prevent the motor from overheating and the blades from spinning when the jar is not connected to the base The Personal Blender smoothie cutter features a powerful 5V electric motor that spins its stainless steel blades at an incredibly fast speed. Your favorite smoothies and shakes will be ready within 40 seconds. Rechargeable and Portable: USB rechargeable portable blender with built-in rechargeable battery makes many cups per charge. You can charge via any USB port for 1-3 hours between Use and drink at home, office, gym, travel or any other outdoor activity. Food-Grade Material: The compact and portable smoothie blender is made from BPA-free food-grade materials. It Fits in most standard sized cup holders. The built-in strainer can filter excess pulp. EASY CLEANING AND BLENDING: Never have to clean the portable smoothie blender again. Add water and an optional drop of soap, and run your blender until clean. Blend your favorite smoothies, milkshakes, margaritas or baby food with just one button. Package contents: 1 mixer, 1 USB cable