General description Lightweight and compact, the USB Cup Warmer Heater is designed for easy placement and storage, making it highly portable. This smart thermostatic coaster is perfect for keeping your drinks warm, whether at home or in the office. With a retro dashboard design and simple operation, it offers a convenient solution for enjoying hot beverages. Technical specifications Product size: 180 x 90 x 20 mm / 7.08 x 3.54 x 0.78'' Product weight: 186g Rated voltage: DC5V Input current: 2.1A (min) Rated power: 10W (min) Power supply mode: USB plug-in Temperature maintenance: approximately 50 °C Usage Keep your glass of water, tea, coffee, milk, or other drinks warm. Features a 5-mode temperature adjustment and drink water reminder. Three heating levels available: 2 h, 5 h, 8 h. Knob button for easy temperature selection. Other information Safe and reliable with high-quality heating elements. No driver required, supports hot swap. Non-slip, heat-insulating placemat design.