Heated Slippers for Cold feet,Rechargeable Foot Warmer socks Premium Indoor, Electric Booties, Built-in Battery, Max 8h Long Lasting Graphene Heating, Washable

Premium Indoor Warmth Design: Ultra-soft, lightweight and breathable for easy slip-on wear and effortless walking. Wraps your feet in gentle heat while fully relaxing them-all bulky batteries and wires that press against insteps and ankles are eliminated. Say goodbye to cold feet and enjoy the relaxing warmth! Globally Patented with certified patents obtained in the US, Germany and Japane. Professional Graphene Heating Technology: Features far-infrared heat therapy that heats up instantly after power-on and delivers ultra-long-lasting warmth. Runs for up to 8 hours with 6000*2 mAh capacity and reaches a maximum heating temperature of 140F. Provides stable, reliable heating in both temperature and runtime, making it your trusted companion through frigid winters. Customizable Heat Levels with Colored Lights: Red (140F/4H), Green (122F/6H), Blue (104F/8H). Easy free switching for your desired warmth. Built-in NTC overheat protection for safe and cozy heating Easy to Charge: External switch with charging port comes with a 1-to-2 Type-C cord to charge both slippers simultaneously without removing batteries. 4 LED indicators show real-time power status while charging or wearing Humanized Detachable Washable Design: The inner insole is removable and the outer cover is machine washable. Effectively eliminates sweat odors and stains built up from long-time heating, keeping your heated booties clean and hygienic Roomy Indoor Design Fits Various Sizes: Standard (foot length 26.5CM) for UK4.5-7.5; Large (foot length 28CM) for UK8-11. Choose Large if you wear UK7.5,but with wide feet or high insteps