- Material: ABS+electronic components-2. Size: 45 * 42 * 108mm; Weight: 125g-3. Battery capacity: 3000mAh; Charging time: 4 hours-4. Battery life: 2.5-8 hours-5. Speed: 20000 RPM (MAX); Air flow noise: 45db-6. Mini body, high air volume; Battery Level Display