Stay cool wherever life takes you with the TOPK 4‑inch USB Mini Portable Fan, a compact powerhouse designed for personal use at home, the office, or outdoor adventures. This small yet mighty fan features a 4000 mAh rechargeable battery, offering quiet cooling with three selectable speeds and a 360° swivel head that lets you direct airflow exactly where you need it. You can power it via USB—plug into a laptop, power bank, car USB outlet, or wall adapter—making it ideal for camping trips, desktop work, bedside comfort, pet spaces, makeup tables, and more.

Crafted with a durable ABS body and soft silicone base, the TOPK fan is lightweight yet stable, measuring just 4 inches across and weighing under 260g. A whisper-quiet motor ensures peaceful operation at all speeds, while a long-lasting battery provides up to 12 hours of cooling per charge. Intuitive controls and a stylish, portable form make it an essential companion for modern living.

2. Key Points

• Product Name: TOPK 4‑Inch USB Mini Portable Fan – Rechargeable & Adjustable Desk Fan
  
• Fan Size: Compact 4 in (10 cm) blade diameter
  
• Battery & Charging:
  
  • 4000 mAh Li-ion battery
    
  • Approx. 5 hr USB-C recharge
    
• Speeds:
  
  1. Low (≈30 CFM airflow)
     
  2. Medium (≈40 CFM)
     
  3. High (≈50 CFM)
     
• 360° Adjustment: Tilt and swivel head for full-range airflow direction
  
• Operation Modes: Steady or pulse-like oscillation
  
• Noise Level: < 40 dB at low; < 55 dB at high – near-silent
  
• Power Options: USB-powered during charging or battery mode
  
• Build: ABS plastic frame + anti-slip silicone base
  
• Compact & Lightweight: 260g, easily fits backpacks, bags, or desktops
  
• Safety Features: Auto shut-off when tipped or overheating
  
• Usage Scenarios: Camping, office desks, bedside, travel, dorms, kitchens, gyms
  
• Design: Minimalist aesthetic; available in cool LED blue light option
  

3. Benefits

🧳 1. Ultra-Portability

The compact form and lightweight design make it easy to carry in your backpack or luggage—ideal for camping, outdoor events, or office shifts.

🌬️ 2. 360° Airflow Control

Adjustable fan head allows for personalized comfort whether you're sitting, standing, or lying down—even drain air to cool pets or electronics.

🔋 3. Long-Lasting Battery Life

With up to 12 hours runtime on low speed, this fan keeps you cool through travel, night-time charging, or desk sessions without interruption.

🤫 4. Whisper-Quiet Operation

Perfectly quiet for work, study, or sleeping—great companion in shared spaces, offices, or home environments.

🌡️ 5. Three-Speed Versatility

Choose from gentle breeze to powerful airflow—adjustable for sweat-free daily comfort or quick cool-downs.

🔄 6. USB-Powered & Rechargeable

Use your own power bank, laptop, or phone charger—no proprietary charger needed. Keep going with low battery alerts.

🛡️ 7. Stability & Durability

A secure silicone base provides non-slip stability, while the robust ABS body resists bumps and travel wear.

💤 8. Smart Auto-Off Protection

The fan automatically shuts down if tipped or overheating occurs, ensuring safety and energy efficiency.

🏞️ 9. Ideal for Indoor & Outdoor Use

Whether you're camping, commuting, or working from home, this fan adapts to your environment with quiet, efficient cooling.

📹 10. Great for Content Creators & Gamers

Mount near cameras, laptops, or mixers to stay cool during live streams or gaming marathons with minimal sound interference.

4. Why You Should Choose This

✅ Portable Comfort

TOPK delivers effective cooling in a pocket-sized fan—ideal for those who render their workspace flexible and mobile.

✅ Long Battery + USB Flexibility

Enjoy continuous cooling via USB or battery—perfect for places lacking power outlets.

✅ Quiet & Focused

Whisper-quiet operation preserves concentration, restful sleep, or peaceful conversations.

✅ Durable & Safe

Sturdy design resists tipping, and auto-off safeguards give peace of mind at home or on the go.

✅ Stylish Versatility

Clean lines, neutral palette, LED ambiance option—the fan complements modern desks and portable lifestyles.

✅ Excellent Value

High functionality in a small package—three speeds, adjustable head, rechargeable battery—at an affordable price.

5. Conclusion

The TOPK 4‑Inch USB Mini Portable Fan provides reliable, cool airflow anytime and anywhere. Whether you're camping under the stars, powering through deadline work, or craving a gentle breeze by your bedside, this compact fan combines powerful performance, quiet operation, and intuitive controls.

With its rechargeable battery, USB compatibility, adjustable airflow, and safety-first design, it's a must-have for anyone seeking portable, personal comfort. Embrace cooling convenience wherever life takes you—choose TOPK Portable Fan today.