Function: & 12304;Food-Graded Material& 12305;With food grade high borosilicate glass body, health, safe and high temperature resistant. 316 food grade stainless steel heating plate, safer and healthier. & 12304;With Temperature Display& 12305;The water temperature has LED screen to display temperature, practical and considerate; Supports 37& 8451; to 55& 8451; temperature adjusting for different baby formula & 12304;Built-in Large Capacity Battery& 12305;Built-in 5200mAh large capacity battery, can keep constant temperature up to 8 hours; With type-c charging port and USB charging cable, the water warmer can charged by power bank, USB power adapter, laptop, car charger conveniently. & 12304;Other Features& 12305;Bouncing cup cover design, one hand operation, easy to use; silicone anti-slip pad at the bottom for more stable placement; compact and lightweight, more convenient to carry during outdoor travel. Specifications: Color: White/ Pink/ Blue(optional) Material: Borosilicate Glass + Stainless Steel + ABS Capacity: 300ML Temperature Range: 37& 8451; to 55& 8451; Battery Capacity: 5200mAh Charging: 5V USB Item Size: 21 * 8.6cm/ 8.3 * 3.4in Item Weight: 580g/ 20.5oz Packaging list: 1 * Water Warmer 1 * USB cable