Rechargeable Heated Socks for Men and Women General socks can not keep your feet warm enough in harsh winter. Heated socks provide heat up to 140℉(60℃), which will keep your feet nice and warm in the extreme cold weathers. You can also wear these winter socks under your boots or as leg warmers for double protection. Now, stay warm on the slope with this heated socks. Previous page Next page 1 Breathable Heated Socks 2 Comfortable & Lightweight 3 Breathable Heated Socks 4 Durable Heated Socks 5 Compression Heated socks ATTENTION How to use? Charge up - Fully charge the batteries with provided charger kit before using.Plug-in - Carefully connect batteries with power wire located in the packet.Press 2 seconds to power on and press again to adjust heating modes available. About Battery Get a full charge in 4 hours.Please take batteries out of the socks if they will not be used for long periods of time.Please charge fully before use. Batteries will reach top performance after 3-5 times fully charge cycles.