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! Minipresso GR is your best choice to enjoy up to 50 ml of authentic espresso 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 the piston from its travel position and pump a few strokes to pressurize and extract perfect espresso with generous crema. Note: Accessories are sold separately! Enhance your Minipresso GR to get the most from it. You can purchase Minipresso Kit or Minipresso Case to enjoy longer espresso, up to 100ml, and protect it from scratches. You can purchase accessories separately from our store. If you have any problem with our products or need help, please feel free to contact us through Amazon. We will respond you in time and give you a satisfactory solution., Weight: 0.7936641432 Pounds, Manufacturer: WACACO