1. The rated power of the product is 5V 0.76A, please do not use mobile power, charger or USB power port with voltage higher than 5V to power this gloves. (When the output voltage exceeds 5V 2A, the glove heating temperature will be too high and may cause scald.) 2. Please cut off the power immediately when not in use. 3. The elderly and children should use it under under guardianship. 4. Please remove the heating piece when cleaning. Gloves can be cleaned separately. About this item HEATED GLOVES KEEP HANDS WARM IN COLD DAYS: Our gloves with heating piece on hand back keep your hands always warm, brings no effect for hands movement when you work or study front of computer. farewell to icy hands in cold winter 3 TEMPERATURE LEVELS: The heating gloves is easy-to-access USB 5V powered, convenient and practical. 3 temperature level adjustable: High heat mode: 47~50C; Middle heat mod: 43~45C; Low heat mode: 40~43C. HALF & FULL FINGER GLOVES: Its half finger designed for typing or gaming, but with finger cover folded in the back, release the button to unfold the finger cover to keep finger tips wrapped in warm when not typing. PREMIUM MATERIAL: Made from quality durable knitting wool, soft and comfortable to wear, one size fits most people. Water washable, just remove the heating pieces and ready to clean. A MUST-HAVE IN WINTER: Used under scores of occasions in winter or cold autumn, suitable for gaming, typing, operating the mouse, and more other situations such as work, play, skiing, riding, hiking, outdoor exploring, etc HEATED GLOVES KEEP HANDS WARM IN COLD DAYS: Our gloves with heating piece on hand back keep your hands always warm, brings no effect for hands movement when you work or study front of computer. farewell to icy hands in cold winter 3 TEMPERATURE LEVELS: The heating gloves is easy-to-access USB 5V powered, convenient and practical. 3 temperature level adjustable: High heat mode: 47~50C; Middle heat mod: 43~45C; Low heat mode: 40~43C. HALF & FULL FINGER GLOVES: Its half finger designed for typing or gaming, but with finger cover folded in the back, release the button to unfold the finger cover to keep finger tips wrapped in warm when not typing. PREMIUM MATERIAL: Made from quality durable knitting wool, soft and comfortable to wear, one size fits most people. Water washable, just remove the heating pieces and ready to clean. A MUST-HAVE IN WINTER: Used under scores of occasions in winter or cold autumn, suitable for gaming, typing, operating the mouse, and more other situations such as work, play, skiing, riding, hiking, outdoor exploring, etc