nbsp;【USB Rechargeable】Built-in 4000mAh rechargeable battery. Our smoothie blender supports 20 blending sessions after a 3-5 hour full charge. Charge via AC adapter, power bank, computer, or any USB power source. Portable and perfect for travel, camping, fishing, home, and office use—easy to carry on the go.【2-in-1 Design】The lid features a direct-drink function. Enjoy your smoothie straight from the bottle cap spout like a regular 380ml water bottle, or simply insert a silicone straw. Savor fresh smoothies anytime, anywhere.【BPA-Free】The blender body is made of ABS material + food-grade PCTG material. Enjoy worry-free preparation of protein shakes, smoothies, juices, baby food, and face masks.【One-Touch Cleaning】Simply add water and press the power on to activate the self-cleaning mode for effortless maintenance.