Qualitative MaterialsThis USB baby bottle warmer is made of highquality microfiber PU material, which is safe and nontoxic. Intelligent Temperature Control DesignThis USB baby bottle warmer is 24hour insulation when plug in, and adopts intelligent temperature control design, the fourlayer design can lock temperature. Portable DesignThis USB baby bottle warmer adopts portable strap and can be hung on the crib, the packaging is convenient and firm, not easy to fall off, which is ideal for outside walk, shopping and travelling. Easy to UseThis baby bottle warmer support power bank, USB, car charging, which is easy to use. Wide Range of ApplicationThis USB baby bottle warmer can be applied to a variety of materials, such as water cups, mineral water bottles, milk boxes and so on.