Portability: The coffee maker is designed to be compact and portable, making it easy to carry during travel, camping, hiking, and other outdoor activities. It can fit easily in a cup holder or bottle holder in a backpack, saving space and ensuring you can enjoy coffee wherever you go. Upgraded Battery & Fast Heat: The efficiency of the upgraded battery can brew one more cup than similar products. Built-in 7500mAh rechargeable batteries, brew 3-5 cups when fully charged while other brands can only brew 2-4 cups. Cold water takes only 3-4 minutes to heat up, which is 6 minutes quicker than some brands. 2 in-1 Portable Espresso Machine: This travel coffee maker works with ground coffee and coffee capsules. As a versatile 2-in-1 coffee maker, it allows you to quickly brew coffee using either freshly ground coffee or coffee capsules. Furthermore, it supports both cold water brewing and hot water brewing options. When fully charged about 3 hours with 5V 2A cable, it can brew approximately about 4 cups with 40ml of cold water or 2-3 cups with 80ml of cold water. For hot water brewing, it can make over 100 cups of delicious coffee. One Button Operation:Portable personal espresso coffee machine: Heat water and extract espresso automatically with just one press. Optimized 3.2'' coffee cup more taller than others to actually free your hands from holding the machine while extracting. Fast Self-heating & Rich Crema: Portable Espresso Machine On The Go: With 94℃/201℉ maximum temperature and 19 BARS maximum pressure, mini portable espresso coffee brewer delivers nice espresso with smooth flavor and rich crema. Portability: The coffee maker is designed to be compact and portable, making it easy to carry during travel, camping, hiking, and other outdoor activities. It can fit easily in a cup holder or bottle holder in a backpack, saving space and ensuring you can enjoy coffee wherever you go.Portability: The coffee maker is designed to be compact and portable, making it easy to carry during travel, camping, hiking, and other outdoor activities. It can fit easily in a cup holder or bottle holder in a backpack, saving space and ensuring you can enjoy coffee wherever you go.