JisuLife Neck Fan Life4

Fans: Dual centrifugal turbofans, up to 8000 RPM

Speed Levels: 5 adjustable speed levels

Airflow Intensity: 3 to 8 meters per second

Directional Airflow: 30-degree tilt adjustment

Battery: High-capacity 5000mAh Li-polymer 

Recharge Time: 2 to 3 hours

7 days replacement warranty 

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Features Specification:

Cooling System: 360-degree cooling with 80 precision air vents

Airflow Technology: Advanced aerodynamic engineering, computational fluid dynamics-optimized ducting

Fans: Dual centrifugal turbofans, up to 8000 RPM

Speed Levels: 5 adjustable speed levels

Airflow Intensity: 3 to 8 meters per second

Directional Airflow: 30-degree tilt adjustment

Noise Level: Below 25dB

Battery: High-capacity 5000mAh Li-polymer (also reported as 4000mAh in specifications)

Runtime:

Level 1: Up to 16 hours

Level 3: Up to 8 hours

Turbo Mode: 2.5 hours

Charging: USB-C PD 18W fast-charging support

Recharge Time: 2 to 3 hours (approx. 2 hours also reported)

Comfort Design: Medical-grade TPE silicone, breathable mesh channels, adjustable curvature (15° to 30°), non-slip grip texture

Power Management: Intelligent system, auto-shutdown (head tilt beyond 30 degrees), low-power standby mode, battery health monitoring

Durability: Weather-resistant IPX4 certification, UV-resistant ABS casing, shock-absorbing reinforced corners

Dimensions (Unfolded): 8.3″ x 6.7″ x 2.4″

Weight: 8.97oz (254g)

Materials: ABS + food-grade silicone

Bearings: Magnetic levitation

Sound Reduction: Sound-dampening foam chambers, precision-balanced fan blades