MF119 Handheld Fan with Retractable Cable Adjustable 100 Speeds USB Rechargeable Portable Cooling Fan - White 【Versatile Cooling】Featuring both a powerful fan and semiconductor cooling technology,this handheld fan offers dual cooling modes for maximum comfort 【100-Speed Adjustability】With 100 speed settings,you can fine-tune the airflow to your exact preference,from a gentle breeze to a strong gust 【Retractable USB-C Cable】Built-in 40cm retractable Type-C cable for convenient charging and portability,eliminating the need for separate cables 【Long-lasting Battery Life】Powered by two 21700 lithium-ion batteries with a 6000mAh capacity,enjoy up to 21 hours of use on the lowest fan setting 【High-Quality Construction】Made from durable ABS,PC,stainless steel,and aluminum alloy materials,ensuring longevity and reliable performance 【Rapid Cooling】Achieve wind speeds up to 8.0 m/s and fan speeds of 10,600 RPM at the highest setting for quick and effective cooling Specifications: Materials: ABS,PC,stainless steel,aluminum alloy Power: Rated 3.7V (100-speed fan ~3.8W,fan+semiconductor ~7W); Max 4.2V (100-speed fan ~4.8W,fan+semiconductor ~9W) Speed Settings: 1-100 stepless adjustment Retractable Cable: Type-C,40cm length,5V/2A charging/discharging Wind Speed: 01 speed: 5.0m/s,50 speed: 6.75m/s,100 speed: 8.0m/s Rotation Speed: 01 speed: 6880RPM,50 speed: 8750RPM,100 speed: 10600RPM Battery Life: Fan only (01 speed: 21h,50 speed: 10h20m,100 speed: 5h50m); Fan+Cooling (01 speed: 4h40m,50 speed: 3h30m,100 speed: 2h50m) Battery Capacity: 6000mAh (Rated 3800mAh at 5V⎓2A) Battery Type: 2x 21700 Lithium-ion Charging Time: Approximately 3 hours 40 minutes Cooling Technology: Semiconductor cooling Certifications: 3C,Quality Inspection,CE,ROHS,FCC Package included: 1 x Handheld Fan 1 x Lanyard 1 x Chinese and English Manual