Easy to operate Add ground coffee to the filter basket, apply slight pressure to level the grind, then add hot water to the water tank. Start the machine to extract coffee with abundant crema. Requires 2 AAA size batteries (not included). Water temperature control The portable coffee machine uses precise water temperature control for better flavor: 8892 C for extraction, and the water tank runs at 9599 C. The filter cup operates at 8892 C, which is ideal for extraction, and the coffee cup remains at 6570 C for a hot, satisfying result. Water capacity scale A userfriendly water capacity scale allows you to assess the amount of water at a glance, helping you brew consistently. Light and easy to carry Lightweight and portable design makes it convenient to carry anytime. Built for outdoor enthusiasts and coffee lovers, it is suitable for traveling, camping, hiking, backpacking, fishing, as well as home and office use. Use scenarios Outdoor activities: take the coffee maker on trips such as camping, hiking, backpacking, or fishing to enjoy hot coffee away from home. Home or office: keep it on a desk or in a kitchen for quick, convenient coffee preparation. Travel and commuting: compact and portable enough to accompany you on trips, ensuring you can brew coffee wherever you go.