Review on ETL Certified Ceramic Portable Electric Space Heater by BUSYPIGGY - Personal Foot Heater for Office Room Desk Indoor Use, with Oscillation and Auto Shut Off, Blue Color by Roberto Smith

Great inexpensive heater. It only has one temperature setting, but it fluctuates. The only negatives I found were the function keys and poor documentation. The instruction manual is pretty much useless, so note that the heater glows red. You have to wait about a minute before you press the button and it turns blue = warm. If you don't wait, you can press the button multiple times and it won't respond. The same goes for the swing button. You must wait for the heater to reach temperature before the button will work. After figuring it out through trial and error, it works great.