Food Grade Material: This portable juicer cup is made of food-grade PP & ABS material, BPA-free, non-toxic and eco-friendly, you can enjoy fresh nutrient retention and wonderful leisure time. Built-in Rechargeable Lithium Batteries: With built-in battery & USB cable, this single serve blender can be easily charged by power bank, laptop, computer or other USB devices, keep your travel on the go. Upgraded 6 Blades in 3D for Superb Mixing: SUS304 stainless steel made sawtooth blades , 22,000 revolutions per minute, which can effortlessly pulverizes fruits, vegetables into amazing smoothies .It doesn’t leave chunks of fruit and ice and no noisy like traditional blenders.