Features: 3-Gear Temperature Setting: These electric heated socks come with three temperature settings, namely in low - 40 degrees C/104 degrees F, medium - 45 degrees C/113 degrees F, high - 50 degrees C/122 degrees F, allowing you to choose the level of warmth that suits you best. Long-lasting Battery: Equipped with 2*5V 5000mAh rechargeable Li-Polymer batteries, these heated socks provide long-lasting heat for extended periods of time. Say goodbye to constantly replacing disposable batteries and enjoy the convenience of rechargeable power. Intelligent APP Control: With the intelligent APP control feature, you can easily adjust the temperature settings of these washable heating socks right from your smartphone. Simply scan QR code or download the Aiwei app from compatible with Google Play or Apple APP Store, connect it to your socks, and have complete control over your comfort level. Wide Range of Uses: These battery heated socks are not only perfect for outdoor activities like hiking, skiing, and camping, but also great for everyday use. Whether you"re working in a cold office or simply want to keep your feet warm at home, these socks are versatile enough to meet your needs. And one size is suitable for unisex women & men in 6-10.5 US size. Perfect Gift: Looking for a unique and practical gift? Look no further! These 5000mAh heated socks with snowflake print make for a perfect gift for your loved ones. Whether it"s for a birthday, Christmas, or any special occasion, these socks are sure to bring warmth and comfort to the recipient. Specification: Product material: Imitation cashmere Product size: 28 x 23 x 10cm / 11.02 x 9.05 x 3.94in, one size fits for 6-10.5 US size Product weight: 99.2g / 3.49oz Product color: Red, Blue (Optional) Battery: 2*5V 5000mAh Li-Polymer batteries Input: Type-C 5V 2A Output: DC 5V 2A Output power: Max. 10W Heating time: about 3-5 hours Charging time: about 5 hours Gear: Low - 40 degrees C/104 degrees F, medium - 45 degrees C/113 degrees F, high - 50 degrees C/122 degrees F Gender: Unisex women men Packing List: 1pair x Heating Socks 2 x Li-Polymer Rechargeable Batteries 1 x 1 to 2 Type-C Cable 1 x Manual 1 x Packing Box