1,hotsale heating cup with USB 2.material,SBR CR,carbon fiber, 3. ... 40-45 4,size,30*9cm introductionName,promotional keep cup warm heating cup with USBMeterial, SBR CR,carbon fiber,denim Input power ... ,4W + 0.5W Input Voltage,PC USB 5V Temperature,40- ... Milo or soup will be warm for hours! promotional keep cup warm heating cup with USB