Ceramic heating technology: This heater uses high-quality PTC ceramic heating elements, which can preheat quickly in 1 second and have high efficiency. It consumes less electricity and produces a warmer heating effect, which can be very effective in reducing electricity costs. Ideal for heating living spaces such as under tables, porches or children's rooms. 【Constant temperature】 When the room temperature reaches the set temperature, it will automatically switch to sleep mode to prevent overheating. When the room temperature is lower than the set temperature, it will automatically wake up to prevent excessive cooling and save energy. Heating is faster and more efficient than traditional heaters. 【Super soundproof】 The radiant heater does not blow hot air, but directly and silently heats the indoor air. So as not to disturb your sleep, reading and work. This radiant infrared heater is perfect for bedroom or office. The heater works with extremely low noise (