Hand Free Personal Fan – Portable USB Battery Rechargeable Mini Fan – Headphone Design Wearable Neckband Fan Necklance 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
Power: 0.3W-1.2W
Power input: DC 5V 1A
Weight: Approx. 248g
Package list:

1 * Sports Fan
1 * USB Charging Cable