Physical Dimensions

• Height: ~10–18 cm (4–7 inches)
• Width: ~5–8 cm (2–3 inches) at the fan head
• Weight: ~80–150 g (2.8–5.3 oz) — ultra-portable

Power & Battery

• Battery type: Rechargeable lithium-ion (commonly 1200–3000 mAh)
• Charging method: USB Type-C or Micro-USB
• Charging time: ~1.5–3 hours
• Runtime: ~2–10 hours depending on speed setting

Performance

• Speed levels: Usually 2–4 settings (low, medium, high, sometimes turbo)