Features: 1.100 speed high-speed ice wind, 10m/s strong wind speed 2. Aviation grade aluminum alloy quickly dissipates the heat generated by the fan motor during operation, improving the efficiency and stability of the motor 3. [Aviation Noise Reduction] The second generation of active noise reduction brushless motor, 20dB silent noise reduction, five gears are also quiet. 4. [AI Energy Saving Chip] Intelligent and precise temperature control, energy saving and power saving, enjoy the long-lasting cold wind. 5. [LED Display] Cooling display, wind power level display, charging display. 6. [Use Scene] The fan can be handheld, standing, hanging neck can be hiking, traveling, office, home, outdoor travel and other scenarios. Specifications: Input: 5V -1A Battery capacity: 3000mAh Power: 3.4W Product list: Fan* 1 Lanyard* 1 Instruction manual* 1 Charging cable* 1