1.Ceramic Sp HeaterAdvanced PTC ceramic heating element provides faster and more efficient heating than traditional heaters. Small sp heaters heat up quily in 3 seconds. Small yet powerful, this is the perfect heater for e, bedroom, office and under desk use 2.Safety Features Overheating protection ensures that the sp heater will not overheat even if it is turned on for a long time. If the device accidentally overturns or reaches a high temperature of 176F, it will automatically shut down, effectively avoiding burning or fire or any other safety incident 3.Quiet DesignThe table heater is suitable for w and cold nights. 45db quiet heating ieases comfort while maintaining the desired temperature you need. Suitable for living room, bedroom, office, dormitory, etc. 4.Portable DesignLightweight but powerful, you can easily carry it in any room.