USB power drink cooler & warmer

USB power drink cooler & warmer
Plug it in to a USB port without any transformer, and the cold plate quickly feels cold to the touch
cold plate temperature: 10~15?, if you want warmer coffee or other drink, just change the switch ,then it will be on the warmer stage,termperature range : 75-80? Simply place anything on the cold plate and allow it variously to cool down or to stay cool
cold plate size: Dia65mm
Color available: white, silver Material: ABS, Aluminium, steel
Operated by: 5V USB power