Features:High-quality fabric: These heated socks are made of high-quality fabric, which is soft, breathable and comfortable to wear.Smart Remote Control: The temperature of the electric socks can be controlled by a smart apps. Through the apps, you can adjust the temperature, time the heat, switch the machine on and off, or control the left and right socks individually.3 Heat Settings: Three temperature settings, you can choose according to your preference to keep your feet comfortable and warm. Includes 40C, 45C and 50C.LONG LASTING BATTERY: The heated socks last up to 3 hours on the highest temperature and 5 hours on the lowest temperature, so you don't have to worry about dying prematurely.Applicable scene: very suitable for camping, skating, skiing, fishing, hiking, climbing, cycling and other outdoor activities.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement3.Asian size is smaller than eu/us/uksize,please compare the detail sizes before purchasing. Description:Product voltage: 5VBattery voltage: 5VTemperature: 40C-50CBattery capacity: 5000mASize: 23*28*10cm