Hand Free Personal Fan - Portable USB Battery Rechargeable Mini Fan - Headphone Design Wearable Neckband Sport Fan Neck lance Fan Cooler Fan 
Features:
Mute motor with super strong wind, to cool you off. Anti-wear fan for comfortable and hands-free experience.
Adjustment fan angle to meet your needs. Lightweight and fashionable design, no burden when doing sports.
Easy to switch the wind speed - Switch 3 wind speed via A key switch.
Instructions
Long press for 3 seconds (on/off)
Touch your button to cycle through the wind speed
Indicator light:
Work: blue light flashes
Charging: red light
Fully charged: blue light is on
Low battery: red flashing
Specification
Type: Mini Neck Double Fans
Battery: 18650-3.7V 1200mAh (Not included)
Power: 0.3W-1.2W
Power input: DC 5V 1A
Weight: Approx. 248g 
Package list:
1 * Sports Fan
1 * USB Charging Cable
Cell not included