Glue-injected reinforced design enhances safety and durability, preventing explosions and punctures from sharp objects for long-term wear. Three-level intelligent temperature control at 40°C, 50°C, and 60°C, allowing easy adaptation to varying temperatures for optimal foot comfort. 3000mAh large-capacity battery with built-in high-performance lithium-ion technology, ensuring long-lasting battery life and fast charging for safety and efficiency. Breathable, odor-resistant foam that is waterproof and sweat-resistant, providing dry and comfortable wear for extended periods. App-based intelligent heating control allows remote temperature management for each foot, with real-time visibility and customizable smart timers for a experience. This innovative product combines advanced technology with user-friendly features to deliver exceptional comfort and safety. The durable construction ensures long-term use, while the intelligent temperature control adapts to your needs. The large-capacity battery provides reliable power, and the breathable foam keeps your feet dry. With app control, you can easily manage the heating settings for each foot, making it perfect for various activities and environments. Enjoy a tailored experience with smart timers that fit your schedule. Color: As Shown Material: PU Foam Specification: S:Small size (35-40) Package Contents: 1 pair x insoles 2 x charging cables 1 x English instruction manual 1 x English color box