The car cooling heating cup holder adopts ABS+ environmentally friendly aluminum alloy, simple design. It is applicable to use of DC-12V a vehicle-mounted power supply and household adapter [2 in 1 functions]Warmer & Cooler functions. With cooling down to 0 and heating up to 60 your beverage will cool down or in minutes.( note: since the sensing distance is 0-10mm, it is difficult to completely heat or cool the beverage if the diameter is too small.) Colour:black Material:ABS+aluminum alloy Package Contents: 1 x Smart water cup holder 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.