1,usb heated cup 2.material,SBR CR,carbon fiber,USB cable,denim, 3.Temperature 40-45 4,size,30*9cm nameusb heated cup voltage ... SBR CR which can fit for different size of the cup based on its springy character.2.It can keep the ... the short time and keep the stalbe temperature when connect with computer4.Keep the temperature of drink not low than 45 ...