2 in 1 Smart Car Cup Warmer Cooler Auto Car and Heating Cup Mug Holder with LED Display Control Keep Beverage Cool and Warm Fits inRoad Tripp Material: Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 600g Package size: 15.5x12x20.3cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) 【 Choice】Good For Road Trip Party Commuting Picnic Coffee-lovers Or Heating Milk For Child.This Car Coffee Warmer Is An Ideal Companion For Going On Trips Or Out For Work.Portable Size, Smaller Than Traditional Beverage Fridge, Good For Personal Or Family Use. 【2 In 1 Functions】Warmer & Cooler Functions. With Down To 0℃ And Heating Up To 65℃ Your Beverage Will Cool Down Or Warm Up In Minutes.(Please Note: Since The Sensing Distance Is 0-10mm, It Is Difficult To Completely Heat Or Cool The Beverage If The Diameter Is Too Small.) 【Wide Compatibility】For Irregular Bottle Bottoms, Such As Water Bottles, We Recommend Placing 2 Cm Of Water In The Cup As A Conductive Medium When You Use.Suitable For Heating Various Materials Like Aluminum, , , Glass, Etc. Among The Conductive Media, Aluminum Is More Conductive, Followed By Steel, , Glass, And .