Adjust the charcoal incense burner based on room size, desired fragrance intensity, and personal preferences. Suitable for small, medium, or large rooms up to 1,000 square feet, depending on airflow and placement. Provides surround-scent technology for a pleasant fragrance experience throughout the room. Portable and lightweight with an electroplated shell and ceramic heating element. Conveniently sized (9 x 7 x 7cm) with a long-lasting 2000mAh built-in battery. Ideal for living rooms, bedrooms, offices, spas, cafes, and more. Helps purify the air, promote relaxation, relieve stress, and improve sleep quality. Important Purchase Notes: Aromatherapy products do not sustain combustion. Each operating cycle lasts 30 seconds and automatically shuts down. The operating temperature can reach 350 degrees Celsius, and residual heat may persist even when closed.