Wide range of uses: baby bottle warmers are specially designed for travel and breastfeeding, if you do not need to feed your baby urgently, you can choose a 5V 2A/10W adapter, suitable for keeping warm or slow heating (approx. 30 minutes) to meet your different feeding needs. Set the temperature freely: the baby bottle warmer can be adjusted from 30 C to 50 C. Once the set temperature is reached, it maintains a constant temperature. Use the 9V 2A/18W adapter for fast heating and start reaching high temperatures within 10-15 minutes. RELIABLE FABRIC - The portable baby bottle warmer is made of high quality microfiber PU material, which is healthy, odorless and baby friendly. It measures about 7 x 11 cm / 2.76 x 4.33 inches and fits in most baby bottles without worrying about size differences. USB charging: baby milk warmer can be used with portable power banks, charging plugs and car USB ports (power banks not included). Lightweight and portable, easy to carry outdoors. Please do not heat empty bottles. Multifunctional: the USB breast milk warmer bag can store milk cups, drinking cups or coffee cups. The practical design makes the bag easy to carry when hiking, shopping and travelling. Product name: USB bottle warmer baby on the go Material: microfiber PU + heating foil Colour: yellow/pink Dimensions: 7 x 11 cm / 2.76 x 4.33 inches (self-adhesive can be adjusted as desired) USB cable: 1.5 metres Voltage: 5V/9V Current: 2A Charging interface: Type-C charging cable Heating method: evenly heated all around. Features: Precise temperature control: the intelligent temperature control chip is used to accurately display the temperature, making it safer for mothers to heat milk. (Error 2? ). Intelligent temperature control: the temperature can be adjusted from 30C to 50C to meet the needs of different milk powder for different water temperatures. Use of super-conductive fibre heating material, quick heating and long service life. Package includes: 1 x bottle warmer baby on the go. 1 x Type-C charging cable