This portable electric heater uses PTC technology for fast, efficient warmth in bedrooms, offices, and small rooms. Two heat modes combined with an adjustable thermostat allow for tailored comfort, while quiet operation keeps it unobtrusive during work or rest. Overheat and tip-over protection are built in for safe, worry-free use. PTC fast-heating element, adjustable thermostat, 2 heat modes, quiet operation, overheat and tip-over protection.