Rechargeable Heated Insoles

Jontour heated insoles use carbon fiber material for quick 5-second heating, offer 3 temperature settings, and have a 2000mAh battery.

• The description claims the insoles improve heating speed to 5 seconds.
• The description claims the insoles have a built-in temperature sensor and control chip for safety protection.
• The description claims the battery can last 3.5-7 hours and can be charged 500 times.
• The description claims the battery can operate at -20 °C.