Portable Water Warmer Rechargeable for Formula, Milk, Precise Temp Control, 300ml, Portable Instant Water Warmer for Travel, Smart Wireless Baby Flask for Car, Travel, Outdoor, Battery Powered Product Feature: This wireless water heater, very portable, easy to put in your bag, perfect for outdoors, shopping, camping, travel, car, on the go. Large Capacity 300ml. Using the latest chip, real-time and accurate temperature display, mothers no longer have to measure the temperature repeatedly. High Quality Materials: This warmer bottle is made of borosilicate glass ( BPA-FREE), not plastic. Heating elements are food grade materials. Safe and healthy, moms without worry. 5200mAh Long Battery Life: At room temperature, heating 150ml of water reach to 45C/113F in 5 minutes, can be heated about 10 times. Constant temperature 45C for 8 hours. Type C port, compatible with laptops, power banks, wall chargers, etc. Package includes Type C cable.