... *19.4cm5.Qty: 20PCS/CTN6.CBM:0.07 Features: USB mini fridge (can be cooling and heating with remote control switch ... , size: 19.4 × 9 × 9cm8, Weight: 362gPacking: 1, USB 2, mini refrigerator, for useProduct electrical parametersOperating Voltage: DC 5V (USB socket ... , not the liquid directly into the bladder of the machine.2, the machine to be placed away from the damp.3, do ...