We have provided you with temperature strips for your IQube and we ask that you keep an eye on it to ensure it does not overheat. The temperature of your IQube should not be above 30 C or 86 F for prolonged periods of time. If it gets too hot simply turn the volume down on Sandisk player on the left side to reduce the amount of volume being played through your IQube. This should reduce the heat. In extreme heat circumstances you may need to turn it off for awhile. Use your judgement and contact us if you have any questions.