No battery/electricity need. Manual operation only Compact, lightweight and versatile, you may use any variety of coffee bean/roast, which will give you more flexibility in trying new flavors.Need to add the boiling water Enjoying delicious coffee at home, in the office and on the go.Simple to operate Add ground coffee to the filter basket with the help of the integrated scoop. Apply slight pressure to level the grind. Add hot water into the water tank.Finally unlock from its travel position the piston and pump a few strokes to pressurize and extract perfect espresso with generous crema.Product Name: Portable Espresso MachineWeight: 230gsize:19.8x6cmMaterial:Stainless steel+PPcolour:BlackPackage Contents:1 x Portable Coffee MachineOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.