Portable Hands-free Neck USB Rechargeable Dual Mini Fan Model : CN0022FAN Function Buttons: 1. Long press three seconds (turn on / off) 2. Touch key, cycle switching speed. 3. Working: blue light flash. 4. Charging: red light flash. 5. Full of electricity: blue lights bright. 6. Electricity shortage: red light flash. Specifications: Product Name: U
