Features: 1.DIY Fan Pattern: Innovative building block design, manual DIY surface fan pattern. 2.Noise Reduction: Turbo fan blade design, noise reduction and sound reduction, create a comfortable and cool environment for you. 3.Compact Design: Easy to carry and store, small fan for game consoles, stylish matching, showing individuality. 4.Operation Instructions: The machine A key switches on and off the machine function, and the machine B key clicks to switch the wind speed (there are three wind speeds in total), the building block accessories can be combined with DIY patterns. 5.Suitability: Ideal for travel, indoor events for outdoor events, theaters, schools, sporting events, etc. specification:Item Type: Necklace Fan Product Material: Plastic, Electronics Model: XH008 Input Voltage: 5V1A Rated Power: 5W Charging Interface: Type C Charging Time: Approx.2 Hours Use Time: 2-6 Hours Battery Type: Built in Lithium Battery 1200mAh PackageList: 1 x Fan Host 1 x Hand Rope 1 x Lanyard 1 x Building Block Package 1 x Building Block Spacer 1 x Charging Cable 1 x Aromatherapy Tablet