Silent noise reduction, high speed, low noise,Mini high performance motor to minimize noise Smaller than a mobile phone, no pressure when traveling outdoors High speed curved small fan,High speed fan blade,,Extreme speed ice hurricane Variable Speed Control: With 199 gear speed settings, easily adjust fan speed to your comfort level for efficient cooling Versatile Usage: Ideal for sports events, outdoor adventures, or just cooling down , this fan's portable design and strong wind output a must-have accessory Product Name: M21 Curved Handheld Fan Output power: 5V1A Battery capacity: 4000mAh Product size: 144X38X5mm Charging port: Tayp-C Charging time: 1.5 hours fast charging mode Quiet decibel: 50dB (The product appearance and printed words depending on batch, but this does not affect use) Color: B: Gray Material: ABS Package Contents: 1 x Curved Handheld Fan Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.