Premium Materials: Crafted from high-quality walnut wood and metal for even heating and a safe, durable experience. Natural Walnut Grain: Features a beautiful natural wood grain and a smooth finish. USB Powered Convenience: Operates via any 5V USB port (computer, laptop, power bank), making it easy to use anywhere. Ideal for Home & Office: Keeps your beverages warm on cold days. Features: - Even Heating: Ensures consistent warmth for your drinks. - Safe & Durable: Built to last with quality materials. - Easy to Use: Simple USB connection. - Portable Design: Lightweight and compact for easy carrying. - Universal Compatibility: Fits most stainless steel cups, ceramic mugs, and glass cups. - Maintains Warmth: Keeps drinks warm up to 80℃. Specifications: - Main Material: Wood + Metal - Power: 5W - Voltage: 5V - Current: 1000mA - Max Working Temperature: 80℃ - Plate Diameter: Approx. 75mm / 2.95in - Overall Diameter: Approx. 103mm / 4.05in - Weight: Approx. 108-109g Package Includes: 1 x Cup Warmer with USB Cable (Cup not included). Important Notes: - Do not use with cups that have a submerged bottom, mineral water bottles, insulated vacuum cups, or cups with thick bottoms. - Designed to keep drinks warm, not to reheat them. - Please allow for slight variations in color and measurement. - Product color and texture may vary slightly due to the natural material.