sizzling ! Electric Heated Socks Boot Feet Warmer USB Rechargable Battery Sock

The surface material is 51% viscose; 23% nylon; 26% polyester; the inner material is 100% nylon
Battery capacity: 4000mAh
Charging voltage: 5V
Working current: 800mAh-1100mAh
Output voltage: 3.7V
Battery size: 15.8*44*78.5mm
Battery switch mode:
Boot: Double-click the switch to turn on the power (to prevent long-time boot due to extrusion during transportation, replace the long-press boot scheme)
Shutdown: Long press the button to shut down, (to be different from the single-click shift function, so as to avoid continuous clicks that cause double-click shutdown, long-press shutdown is more reasonable)
Gear shift: click after power on, cycle shift, 1.2.3 gear

Features:
1. It can be machine washed, and the washing machine can be adjusted to the gentle washing function; it can also be washed by hand.
2. Super elasticity, double-layer thickening to keep toasty, silky and skin-friendly
3. Use innovative spiral heating, heating wire inlaid in the sock layer, so that the soles of the feet can be heated
4. Increased battery capacity, longer battery life
5. Two-hole USB cable, one line for multiple purposes
6. High-end 4.5-5.5 hours, temperature 60-65. Mid-range 6-7.5 hours, temperature 45-59. Low-end 9-10 hours, temperature 39-44.

Note:
Remove the battery before washing;
The charging red light flashes, other lights are off, and the blue light is invariably on when fully charged;
There is no battery display during use;
If there is no response when pressing the switch, the battery is discharged.

Package Include:
1 pair of heated socks
1*Power Bank
1*USB cable
1*English manual