Rechargeable Heated Insoles. Built-in 1500mah Li-Polymer Battery. Warm Your feet up to 7+Hours. 3 Temperature Setting. Great for Skiing, Hunting, Hiking, Camping, or Outdoor Sports.

• ❤【LONG HOURS HEATING,FAST CHARGING】Built-in 1500mah Rechargeable Li-Polymer battery Works up to 7 hours. Highest mode can reach 43°C/110°F. Charges both insoles within 2-3 hours using any USB Charger.

• ❤【3 TEMPERATURE SETTING】There are 3 temperature setting: High(106-110°F), Medium(101-105°F),Low(95-100°F). Simply click the power button to switch the mode.

• ❤【STEADY SHAPE AND FLEXIBLE SIZE】Full piece molded PU keep steady shape and perfectly fits with your shoes and feet. Insoles can be trimmed to match your shoes size. Comes in M (fits Men's6-8/Women's7-9), L (fits Men's8.5-11/Women's9.5-12) and XL (fits Men's11.5-13/Women's12.5-14).)

• ❤【IP45 WATER PROOF】IP45 washable technology - Insoles can be hand washed with water.