1. Model: if15 2. Material: abs+aluminum alloy+stainless steel 3. Battery capacity: 3000mah (11.1wh) 4. Motor speed: 12000rpm (max) 5. Fan working time: approximately 13 hours at low speed, approximately 1.7 hours at high speed 6. Fan + cooling working time: approximately 120 minutes at low speed, approximately 80 minutes at high speed 7. Charging time: 3 hours 8. Charging port: USB-C 9. Product dimensions: 5.9 x 5.8 x 15.6cm 10. Product weight: 195g 11. 3-second cooling, powerful airflow, instant coolness 12. 13-hour long battery life, mini lightweight, portable carry 13. 12000rpm high speed, six-blade efficient wind gathering, enjoy coolness 14. Optimized air duct to reduce friction with the body, quiet operation 15. Equipped with fan base, handheld/desktop dual-use