Thank you for viewing! This is the "100-Step Strong Wind Peltier Handy Fan HDL-3907," boasting powerful airflow. 【Features】 100-Step Wind Speed Adjustment: You can finely adjust the wind strength to your preference. Peltier Cooling Technology: A handy fan with a cooling function, allowing you to stay comfortable even in the hot summer. Lightweight and Compact: Convenient to carry, perfect for outdoor activities and travel. USB Rechargeable: Can be used repeatedly, making it economical and environmentally friendly. 【Specifications】 Wind Speed: 01-100 steps Battery Capacity: Lithium-ion battery 3600mAh (3.7V 1800×2 13.32Wh) Input Power: 5V 1A Rated Power Consumption: 5W Charging Port: USB Type-C Charging Time (approx.): 4.5 hours Usage Time (approx.): *Please refer to the instruction manual. Operating Temperature: 10-45°C (Charging: 10-40°C) Accessories: Stand, Neck Strap