Overview: Stay warm during winter outdoor activities with our battery-powered heated insoles. Each insole features a built-in 3000mAh rechargeable lithium polymer battery, providing up to 4.5 hours of heat on high, 5 hours on medium, and 10 hours on low. Includes a dual-port USB charging cable for simultaneous charging of both insoles—fully charged in approximately 4 hours. A clearly marked trim line on the bottom allows for easy customization to fit your footwear. Ideal for hiking, camping, hunting, fishing, and other outdoor pursuits. Features: Soft & Warm: Constructed with PU foam and integrated heating elements for even, comfortable warmth across the sole. 3 Adjustable Heat Settings: Activate with a long press of the button on the insole. Short presses cycle through high (red light), medium (red + green light), and low (green light) heat levels. Extended Battery Life: 3000mAh battery per insole delivers long-lasting warmth. Charge both insoles at once using the included dual-port USB cable. Trim-to-Fit Design: Precision trim line enables simple, accurate sizing for a secure fit in most shoes. Thoughtful Gift Option: A practical and caring choice for friends and family who enjoy outdoor activities in cold weather. Care Instructions: Hand wash only. Do not submerge the battery or electronic components in water. Clean only the front half of the insole. Operation: - Long press the insole button to power on (indicator flashes red = standby). - In standby mode, short press to cycle through heat settings: high (solid red), medium (solid red + green), low (solid green). Press again to return to standby. Long press to power off. - Using the remote control: In standby mode, long press H, M, or L for 3 seconds to enter mode selection, then short press the desired button to select heat level. Press ON/OFF to return to standby. Specifications: Product Type: Electric Heated Insoles Color: Black Material: PU Foam Battery: 1 x 3000mAh Lithium Polymer battery per insole Heat Settings: High: 55°C (131°F), Medium: 50°C (122°F), Low: 40°C (104°F) Charging Time: ~4 hours Runtime: High: 4.5 hours, Medium: 5 hours, Low: 10 hours Charging Port: 5V/2A Charging Current: 800mA USB Cable Length: 50 cm (19.7 in) Shoe Size Fit: - Small: US 4–7 (EU 35–40) - Large: US 8.5–12 (EU 41–46) Package Includes: 1 pair heated insoles 1 dual-port USB charging cable 1 user manual