■ Condition: New, Unused ※ Will be shipped without the outer box due to shipping costs. ■ Product Description - Battery Capacity: 8500mAh - Temperature Adjustment Range: 30℃〜70℃ - App Compatibility: iOS & Android - Charging Method: Type-C Charging 【360° All-Around Heating - Warm Feet from Heel to Toe】 The latest 2025 model, smart temperature control heated socks! This product solves the shortcomings of previous models, such as only warming the toes, short heating wires, poor heat retention, and feeling cold even at maximum efficiency! These heated socks newly adopt improved 0.5mm heating wires, and the heating range has been expanded from just the toes to the toes + sole + instep, allowing for all-around heating, and the heating effect has been significantly improved! You'll feel warmth like a kotatsu (heated table) constantly! 【Smart Temperature Management, App Compatibility, and Timer Function】 This product also applies industry-leading app control, allowing you to easily adjust the temperature via your smartphone, and conveniently read information such as battery level! Furthermore, it is equipped with a timer function, so if you have difficulty falling asleep due to cold feet, you can set these electric socks to heat for 2 hours to solve your problem! 【4-Stage Adjustment & Long Operation】 This product is an improved version that supports 4-stage temperature adjustment and is equipped with a quick heat function that heats up in 5 seconds. It comes with two genuine 8500mAh batteries! You can set the modes using the buttons on the battery and app operation: Low: 40℃ / Medium: 50℃ / High: 60℃ / Quick Heat: 70℃. Depending on these settings, it can operate for 5-10 hours, which is sufficient for a full day's use! The battery connection port supports Type-C, providing wide cable compatibility. The battery's outer shape is arc-shaped, fitting the shape of the calf and not causing fatigue even when worn!