Energysaving, safe design Uses a 5V/2A USB interface for low power consumption and efficient heating. Builtin safety features and intelligent temperature control reduce energy waste and risk. Reliable auto shutoff Automatically stops heating after 8 hours to prevent overheating if left on by mistake. Precise temperature options Three constant temperature modes: 55°C / 65°C / 75°C. Threespeed selection allows you to match heat level to your drink and preference. Optimized metal heating plate Metal construction distributes heat evenly across the heating surface. results when paired with a metal cup to maintain temperature and preserve flavor. Simple, practical performance Keeps coffee and other hot beverages warm without frequent reheating. Compact and USBpowered for convenient placement and low electricity use. Use scenarios Home office: Keep your coffee warm during long work sessions so it stays at the right temperature between breaks. Meetings or study sessions: Maintain drink warmth without constantly returning to the kitchen. Evening relaxation: Use with a metal cup to preserve taste and temperature while you read or watch TV. Compatibility and materials USB 5V/2A power input for use with common USB power sources. Metal heating plate designed to deliver uniform heat; recommended pairing with metal cups for results.