Electric Heated Socks for Men Women APP Control Rechargeable Heating Socks Battery Power Winter Warm Socks Feet Warmer for Cold Weather Camping Skiing Hiking Cycle Intelligent heating socks support 3-level temperature regulation and APP control, convenient and practical, promote bloods circulation and nice warmth effect. High-quality cotton fabric, nice elasticity, soft and skin-friendly, supports hand washing or machine washing. Features: Intelligent heating socks heat the soles of the feet, 3-level temperature regulation, promote bloods circulation and has nice warmth effect. High-quality carbon fiber heating wire, quickt heating speed, uniform heating, high temperature resistance, anti-pulling, safety and no radiation.. Made of thickened cotton, nice elasticity, soft and skin-friendly, moisture-absorbing and breathable, support hand wash or machine wash. Through BT can be connected to the phone APP to adjust the temperature and heating time, no need to bend down, more convenient e. It is perfect for indoor or outdoor activities, such as studying, working, hiking, climbing, skiing, etc. Reliable quality, universal for men and women, perfect as a gift for family, friends, colleagues, etc. Specifications: Color: Black Material: Cotton Battery: 2 * 3.7V, 4000mAh Lithium Battery Temperature Control Ranges: Item Weight: 480g/ 16.9oz Package Size: 210 * 155 * 45mm/ 8.3 * 6.1 * 1.8in Package Weight: 505g/ 17.8oz Note: APP can be downloaded by directly scanning the QR code on the manual. Packing List: 1 * Pair of Socks 2 * Battery(4000mAh) 1 * USB Cable