ADJUSTABLE THERMOSTAT : The indoor space heater designed with adjustable thermostat.It keeps you personal working environment at a comfortable temperature according to the thermostat setting. Don't worry if you forget turning off it while left the room. Power indicator lights up to let you know the unit is on.QUIET PORATABLEThis small space heater produces a quiet, white noise that wont disrupt your co-workers. It is mini sized and takes up minimal desktop space and is intended to heat up your immediate space at home or the office. Designed to warm you, not a large room. It's the best Thanksgiving day gift for family.INSTANT HEAT WITHIN 2 SECONDS : This heater portable with PTC heating element, the latest technology in small space heaters and provides a faster, safer and more energy efficient method of heating than traditional space heaters. No need to preheat. Turn on this space heater, it will heat up instantly and drive the cold winter away.