This baby bottles warmer could used for the heating of breast milk and formula milk on travel Product Package Detail: Baby milk bottle warmer 1 set Warmer Type-c USB charge cable 1 pcs Warmer manual 1 pcs Breastmilk Heating and formula milk Suggestion Before use this baby milk bottle warmer,please reading the manual carefully,refuse use it heating the empty baby bottle or bottle not full enough Note:If this baby breast milk bottle warmer have any question in your daily like,please use the online customer service,and we will offer solution plan WARRANTY We promise 6 months warranty of quality problem,if you need,we will do replacement