【Automatic Mixing Function】This 650ml USB rechargeable shaker bottle features a fully automatic blending function, efficiently mixing whey protein powders and cocktail blends without clumping, simplifying your nutrition routine at home, in the gym, or on-the-go. 【Durable and Safe Materials】Crafted from BPA-free, food-grade plastic and stainless steel components, this shaker bottle is designed to be lightweight yet sturdy. With a capacity of 22 ounces (650ml) and featuring a leak-proof seal, it's perfect for active lifestyles. 【Versatile Use】Designed for fitness enthusiasts and busy individuals, this bottle fits standard gym cup holders and supports protein shakes, smoothies, and mixed drinks. It's ideal for post-workout recovery, office hydration, or outdoor activities. 【Innovative and Reliable Design】This shaker bottle stands out with its long-lasting rechargeable battery, convenient USB charging, and quiet motor. Its reliability and convenience help users maintain consistent hydration and nutrition intake. 【Lifestyle Friendly】Easy to clean and maintain, this shaker bottle is suitable for daily use, outdoor gatherings, weekend trips, and home offices. Its portable size and automatic blending feature enhance everyday convenience across all seasons. Specifications: Material: Tritan, ABS, PP Battery Capacity: 1200mAh Motor Speed: 7000rpm Input Voltage/Current: DC 5V 1A Rated Voltage: 3.7V Power: 3W Startup Method: Long press to start Charging Method: USB Type C Charging Time: About 2.5 hours Usage Time: About 30 minutes Charging Indicator Light Color: Red Fully Charged Indicator Light Color: White Working Indicator Light Color: White Auto-stop Time After Startup: 2 minutes Base Detachable: No Product Dimensions: 92x92x200mm Capacity: 650ml Net Weight: 333g Note: The material meets FDA standards, but there is no FDA certification.