Features:_x000D_Portable Design---This USB baby bottle warmer adopts portable strap and can be hung on the , the packaging is convenient and firm, not easy to fall off, which is ideal for outside walk, shopping and travelling._x000D_3 Gear Adjustable Temperature; This USB bottle warmer has 3 gear adjustable temperatures, 40C, 50C, 60C heating gear which can be adjust according to our needs._x000D_Convenient USB Powered: This baby bottle warmer features USB powered and come with a USB cable which can connect to any power banks, car, laptops port, etc. It is portable for us to use it wherever we like._x000D_Universal: Suitable for a variety of milk bottles, while installed on, the heat preservation, suitable for all kinds of milk bottles._x000D_After the sale: We guarantee you a good shopping experience. Please do not hesitate to contact us first if there is a problem and we are always here to assist you._x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_ _x000D_ _x000D_Description:_x000D_Material: cloth_x000D_Inner diameter: 55-75mm_x000D_Heating sheet material: silicone heating wire_x000D_Voltage: 5v_x000D_Current: 2vPackage List:_x000D_1 Set Travel Bottle Warmer