Perfect solution for parents to conveniently, safely and easily warm baby bottle while in the car traveling. So your baby can drink warm milk both at home, in outdoors or on the go! Features: 【USB Bottle Warmer】Baby milk heating keeper come with USB C cable, just connect the cable into power bank, vehicle USB, charging adapters, etc. can power the baby bottle heater. 【Portable Baby Bottle Warmer】Small and compact design for easy carry and storage. The baby bottle heater has a hand strap design, you can hang milk warmer on your diaper bag suitcase belt or baby stroller armrest. 【Intelligent Constant Temperature】This milk bottle heating cover is made of durable materials, safe and insulating. Infant feeding bottle heater can maintain a warm temperature and prevent it from getting cold. USB infant bottle thermostat can make night feeding easier. 【Suitable for Different Sized Bottle】The portable USB baby bottle warmer comes with a velcro loop design which can be adjusted in size to fit different types of baby bottles. The bottle warmer can be used well with plastic bottles and glass bottles. There is a non-slip strip design inside it, which helps to secure the bottle in place to ensure that it does to fall or slip out during travel for added peace of mind.