This coffee mug warmer and cooler is designed to work with mugs, cans, and bottles, offering heating and cooling in one device with energy efficient operation and easy wipe maintenance for daily use. Dual temperature control: cooling to 8 degrees Celsius and heating to 55 degrees Celsius using advanced semiconductor technology, enabling hot drinks and cold beverages as needed. Compatibility and versatility: suitable for mugs, cans, and bottles of various sizes; ideal for coffee, beer, and other beverages. Safe and stable operation: touch control with spill resistant heating panels, ventilation ports for safe operation, and a nonslip base for stability. Easy maintenance and reliability: easy wipe surface for daily cleaning and durable construction designed for everyday use. Target users and performance: suitable for office workers, home baristas, and beverage enthusiasts who require precise temperature control for coffee and beer. Use scenarios In the office: keep coffee hot at up to 55 degrees Celsius for extended sipping during long meetings; also chill bottled beverages to about 8 degrees Celsius on hot days. At home or in a cafe setup: maintain precise temperatures for coffee experiments or tastings, and chill craft beers to a preferred serving temperature. During gatherings: prepare and serve beverages at consistent temperatures for guests without switching devices.