Refrigeration Neck Fan - Real Cooling! Surrounding The Back Of The Top And Bottom Of The Air; Turbo Cold Air System To Send Ice Cold Air; Energy Battery Life; And Comfortable To Wear; Large Area Of Refrigeration, To Do 15 ° C In Seconds Refrigeration Technology, Superconducting Cold Aluminum Semiconductor, Feel The Cooling Heights - Double The Cold Sensation And Feel Icy Smooth Even At 40°C Outdoors. 5200mah Energy Dual-Core Lithium Battery - Adopting The Same Type Of Battery Cell As The Energy Sports Car, The Single Capacity Is Increased By About 45% And The Energy Density Is Increased By 30%, Which Guarantees A Long And Battery Life. Wear Air-Conditioner, Cool Down Quickly, Cool Down Beyond Your Imagination - Semiconductor's First Back Airflow For Full-Body Cooling, Silent// Long-Lasting// Cool// . 3-Speed Refrigeration Air Speed, Memory Gear Function, Turn On Again That Is Used - Neck Cooling Air Conditioner With Memory Function, The Experience Is Upgraded Again Each Time You Turn On The Power To Remember The Last Use Of The Gear, Defining Your Habits Colour:Dark Blue Material:Environmentally friendly ABS + environmentally friendly silicone + environmentally friendly aluminum Package Contents: 1 * Neck fan 1 * USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.