Home Travel Automatic Machine Cold Hot Brewing Cafe Multi-function 3 in 1 Portable Mini Espresso Handheld Capsule Coffee Machine Portable Espresso Machine Lightweight Espresso Machine : Weighs Only 670g Rapid Heating Time : Heat Up in Just 200 seconds* Rich Crema :  Achieves Up to 92°C/198°F at 20 Bars of Pressure for a Creamier Coffee Extended Battery Life : 7500 mAh Battery for 5 Cold Water Brews or Over 200 Hot Water Brews with Rechargeable Battery Professional Standards : European Certified Materials & Coffee Brewing Center Specifications Universal Charging : in 12V or 24V Car Charger and USB Charger( >10W) 2 in 1 Brewer : Compatible with Ground Coffee and Coffee Capsules You can check it out here anytime To make a successful espresso, make sure you choose proper grade ground coffee and the portafilter screwed on tightly or the grounds/capsule holder properly installed. And OutIn Nano can only be extracted for heating when the power indicator is lit by at least two cells Please use a 5V/3A USB wall charger to charge. The machine will not be charged while using a charger below 15W (e.g. the Apple 5W charger).If the power lights flash 5 times and the machine beeps 3 times while using, it indicates the power is too low. Please operate after fully charged. After tests in OutIn factory, our 7500mAh battery heats 50ml of water from 25°C to the extractable temperature (92°C) 5 times after fully charged. However, if water is more than 50ml, heating time and the number of extraction will vary according to your volume. Product Search: Costco, Outlin, WACACO, Espresso Machine,