Thank you for viewing from among many options ♥ᵕ̈* ● Only one available ● Brand new, unused 【Stepless temperature adjustment via app & heating to the toes】The heated socks have far-infrared carbon fiber heating threads wired not only to the soles of the feet but also to the toes. When connected to the battery and the switch is turned on, the heated socks will warm up. In addition to the battery, the temperature can also be controlled via an app. You can connect to your smartphone via Bluetooth and use the dedicated app to check and adjust the temperature of the socks. Because individual perceptions of temperature and usage environments vary, you can control the temperature to your liking with your smartphone. A wide range of temperature adjustments from 40 to 70°C is possible, and a timer function is also included. 【USB rechargeable & arc design battery 6000mAh*2】The heated socks come with two arc batteries. The ergonomic curved design comfortably fits the battery to the calf without causing discomfort. They can be worn with boots. The battery has a large capacity of 6000mAh, allowing for continuous use for up to approximately 10 hours. The warmth lasts a long time and is suitable for various cold scenes such as outdoor work in winter, fishing, and skiing. 【Good breathability & washable】Made of high-quality 100% cotton, it is soft and gentle to the touch, gentler on the skin, and has been anti-pilling treated to prevent pilling. It is safe for sensitive skin. These thick heated socks not only provide cold protection and warmth but also excel in moisture absorption, breathability, quick-drying properties, and elasticity. The heated socks can be hand-washed or machine-washed. 【4-stage temperature adjustment with battery & safe and warm】With PSE-certified electric sock-specific batteries, you can adjust the temperature in 4 stages (low temperature mode: 40°C, medium temperature mode: 50°C, high temperature mode: 60°C, maximum temperature mode: 70°C). You can switch the temperature with one button, making it easy for beginners to operate. The battery is thin and lightweight, making it easy to move around. 【Package contents】Heated socks body, 6000mAh dedicated battery * 2, 2-branch charging cable * 1, laundry net * 1