Features: Food-Grade Material: Made with food-grade high borosilicate glass body, ensuring health, safety, and high temperature resistance. Features a 316 food-grade stainless steel heating plate for improved safety and durability. 300ml Capacity: The portable water warmer has a 300ml capacity, suitable for preparing milk 3-4 times. Wireless fast heating makes it convenient for preparing formula milk outdoors. Temperature Display: Equipped with an LED screen to display water temperature, offering practical and user-friendly operation. Adjustable Temperature: Supports temperature control from 37°C to 55°C, suitable for different baby formula requirements. Built-in Large Capacity Battery: Integrated 5200mAh battery provides up to 8 hours of constant temperature maintenance. Type-C Charging: Includes a Type-C charging port and USB cable, allowing convenient charging via power bank, USB adapter, laptop, or car charger. Additional Features: Bouncing cup cover design enables one-handed operation. Silicone anti-slip pad on the bottom ensures stable placement. Compact and lightweight design enhances portability during outdoor travel. Specifications: Color: White, Pink, Blue (optional) Material: Borosilicate Glass, Stainless Steel, ABS Capacity: 300ml Temperature Range: 37°C to 55°C Battery Capacity: 5200mAh Charging: 5V USB Item Size: 21 x 8.6cm (8.3 x 3.4in) Item Weight: 580g (20.5oz) Packing List: 1 x Water Warmer 1 x USB Cable