Plug and Play, USB Convenient Power Supply Multi-scenario Adaptation: Supports USB-C/USB-A interface power supply, no need for complex wiring; can be used in dormitories, offices, cars, and camping. Low Power Consumption and High Performance: 350W low power design, energy saving and efficient, suitable for long-term use without excessive electricity consumption; compatible with dormitory power limits. Rapid Heating, Constant Temperature and Comfort PTC Ceramic Heaters: 3 seconds rapid heating, uniform warm air distribution, eliminates the slow preheating issue of traditional heaters. Intelligent Thermostatic Control: Built-in temperature control chip automatically adjusts power to maintain constant indoor temperature, prevents overheating or cooling, energy-efficient and reliable. Multi-purpose, Warm Air + Ventilation Dual Mode Winter Warm Air Mode: Quickly raises local temperature, ideal for desk, bedside, or small area heating. Summer Ventilation Mode: Heating function can be turned off, fan-only operation provides airflow; usable year-round with enhanced practicality. Safe Design, Peace of Mind Tip-over Protection: Automatically cuts power when tilted over 30 degrees to prevent safety hazards from accidental tipping. Overheating Protection: Built-in temperature sensor monitors internal temperature and automatically shuts off if overheating is detected, extending product lifespan. Flame Retardant Housing: Constructed with V0 fire-resistant material, high temperature resistant, anti-scald design for safer operation.