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 safer and healthier performance. 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 while traveling. Temperature Display: Equipped with an LED screen to display water temperature, offering practical and user-friendly operation. Adjustable Temperature: Supports temperature control from 37C to 55C, 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: Bounce lid design enables one-handed operation. Silicone anti-slip base ensures stable placement. Compact and lightweight design for easy portability during outdoor use. Specifications: Color: White, Pink, or Blue (optional) Material: Borosilicate Glass, Stainless Steel, ABS Capacity: 300ml Temperature Range: 37C to 55C Battery Capacity: 5200mAh Charging Input: 5V USB Item Size: 21 x 8.6cm (8.3 x 3.4in) Item Weight: 580g (20.5oz) Package Includes: 1 x Water Warmer 1 x USB Cable