🔧 Key Specs Speed modes: 3 levels Input: 5V, 0.2–0.4A (standard USB power) Output: 3–4.5V Power: 1.5W (low energy use) Battery: 4.2V (typical lithium battery) Charging time: 2–4 hours ▶️ How to Use Charge fully before first use (via USB, power bank, or computer). Press the power button once to turn on; press again to turn off. If the fan stops, the battery is low—recharge it. ⚠️ Safety Tips Keep away from small children (risk of finger injury). Avoid heat, humidity, and direct sunlight. Use the original USB cable to prevent battery issues. Do not use while charging (important safety point). Don’t charge for more than 6 hours. If storing long-term, charge it every 2–3 months. Stop using immediately if anything seems wrong (noise, smell, overheating).



