Acefast 77000RPM Turbo Motor 4000mAh Handheld Fan with LED Display and 3 Nozzles YF4

FEATURES:

• Ultra-High-Speed Motor for Powerful Airflow: Experience exceptional wind force with a maximum motor speed of 77,000 rpm, delivering an impressive 17.5 m/s at the highest gear—perfect for rapid cooling or targeted dust blowing on electronics and delicate components.
• Versatile Speed Settings for Every Need: Choose from multiple gears ranging from a gentle 3.9 m/s breeze for personal cooling to a robust 17.5 m/s blast for heavy-duty cleaning, giving you precise control whether you're staying cool outdoors or clearing dust from your keyboard and car interior.
• Three Interchangeable Nozzles for Targeted Cleaning: Included precision nozzles adapt to various tasks—narrow tip for computer keyboards and electronics, flat nozzle for vents and crevices, and wide brush for furniture and automotive dust—making it a versatile tool for home, office, garage, and industrial use.
• Smart Digital Display at Your Fingertips: The built-in LED screen shows real-time battery level, current gear, and charging status at a glance, so you always know exactly how much power remains and which mode you're in—no guesswork, just convenience.
• Long-Lasting 4000mAh Battery for All-Day Use: With a runtime spanning from 38 minutes at max speed up to 10 hours on low, this fan keeps you comfortable or your workspace clean throughout the day, and fully recharges in just 3.5 hours via USB-C.

SPECIFICATION:

• Model: YF4
• SKU: 13000
• Material: ABS + PC
• Dimensions: 137 × 39 × 79 mm (5.39 × 1.54 × 3.11 in)
• Weight: 264 g (9.31 oz)
• Battery Capacity: 4000 mAh (Li-ion)
• Charging Time: Approximately 3.5 hours (via USB-C)
• Operating Time: 38 minutes (at max speed) – 10 hours (at lowest speed)
• Motor Type: Brushless DC motor
• Maximum Motor Speed: 77,000 RPM
• Airflow Speed: Lowest gear: 3.9 m/s; Highest gear: 17.5 m/s
• Display: LED digital screen showing remaining battery level, current gear, and charging status
• Speed Settings: Multiple adjustable gears (continuous variable or stepped, as per product design)
• Included Accessories: 3 interchangeable nozzles (narrow slit nozzle, flat nozzle, brush nozzle)
• Input Interface: USB-C (charging cable included)
• Rated Input Voltage: 5V ⎓ 2A (typical, based on standard USB charging)

Q: Can I use this fan to clean my laptop keyboard without damaging it?
A: Yes, absolutely. The fan comes with three interchangeable nozzles, including a narrow slit nozzle that directs airflow precisely into tight spaces like keyboard gaps. The airflow can be adjusted to a low speed of 3.9 m/s, which is gentle enough to blow out dust and crumbs without harming sensitive electronic components.

Q: How long does the battery last when I use the highest speed setting?
A: On the highest gear (17.5 m/s), the fan runs for about 38 minutes. If you switch to the lowest gear (3.9 m/s), it can last up to 10 hours. The LED digital display shows the remaining battery level in real time, so you'll never be caught off guard.

Q: Is this fan powerful enough to dry wet surfaces or blow leaves off a patio?
A: While it's designed primarily for personal cooling and dust removal, the maximum wind speed of 17.5 m/s (about 63 km/h) can certainly help dry small damp areas or clear lightweight debris like fallen leaves from a table or car dashboard. For large outdoor areas, however, you might need a more heavy-duty blower.

Q: Can I charge the fan while using it?
A: Yes, the fan supports pass-through charging. You can plug it into a USB-C power source and continue using it at the same time. This is handy when you need continuous airflow during a long work session or while cleaning multiple devices.

Q: What types of nozzles are included and what are they best for?
A: Three nozzles come in the box: a narrow slit nozzle for reaching deep into computer keyboards, vents, and small crevices; a flat nozzle for blowing dust off flat surfaces like desks or shelves; and a brush nozzle that gently sweeps away dirt while blowing, ideal for furniture, car seats, and fabric surfaces.