Fangrui Product Details 1. Gl120-123 Hanging Neck Fan Summer Handheld Usb Portable Mini Fan 2. Three-speed Adjustment, Adjustable Lanyard, Safe And Leafless, Rotating Record, Low Chant And Mute, Soft Rubber Doll 3. One-button Control, 3-speed Air Supply, Suitable For Various Scenes 4. Fully Wrapped Fan Blades, Hidden Fan Blade Design, Greater Security 5. Cute Shape, Round And Cute, Thoughtful Design 6. Lightweight Design, Cool Breeze With No Burden 7. Decompress With Fingertips, Empower The Bearings, And Transfer The Pressure Away 8. The Elastic Lanyard Can Be Adjusted And Removed. The Elastic Material Is Convenient And Designed To Prevent Slipping 9. Built-in Large Battery, Long-lasting Battery Life, Use Time: 90-300 Minutes 10. Power Supply Mode: Usb Chargingbuilt-in Lithium Battery 11. Battery Capacity: 500mah 12. Charging Time: About 2-3 Hours 13. Power: 0.5-1w 14. Input Voltage: Dc 5v 15. Output Voltage: 3.7v 16. Charging Current: 0.5a 17. Material: Abspcsiliconeelectronic Components 18. Dimensions: 8 X 6.2 X 32.2cm 19. Net Weight: 117g 20. Precautions: 21. The Product Uses A Set Of 3.7v Lithium Batteries (batteries Are Not Replaceable) 22. Rechargeable Batteries Can Only Be Charged Under Adult Supervision 23. The Charging Cable Must Be Regularly Checked For Damage To Its Wires, Plugs, Casings And Other Parts. If Damaged, Stop Using It Until It Is Repaired.