• 【199-Level Stepless Speed Control】Infinite speed adjustment with 199 precise levels and HD digital display for real-time gear monitoring and optimal airflow customization.

• 【Semiconductor Cooling Technology】Advanced TEC superconductor technology delivers ice-cold air in just 3 seconds, creating a portable air conditioning experience in your palm.

• 【4000mAh Long-Lasting Battery】High-capacity 21700 lithium battery provides up to 23 hours of continuous operation on low speed, meeting all-day outdoor usage requirements.

• 【Turbocharged Wind Tunnel Design】Innovative turbo air duct engineering concentrates airflow for powerful wind delivery and extended cooling distance.

• 【Ultra-Portable Compact Design】Lightweight and compact body fits easily in bags and pockets, making it perfect for on-the-go cooling without any burden.

Specifications:

• Model: JF139
• Material: ABS+PC Shell + 21700 Battery Core + Electronic Components + Hardware Accessories
• Product Size: 60×60×184mm
• Output Power: 10W
• Battery Capacity: 4000mAh (21700 Lithium Battery)
• Charging Input: 5V 2A
• Charging Time: Approximately 3.5 hours
• Charging Interface: Type-C
• Wind Speed Gear: 1-199 Stepless Levels
• Operating Time: Fan Only - 1st Gear: 23h, 100th Gear: 4h, 199th Gear: 2.5h; Fan + Cooling - 1st Gear: 3h, 100th Gear: 2h, 199th Gear: 1.5h