Fast charging on the go: The Power Pack provides power to smartphones, tablets, Bluetooth speakers, and other mobile devices—whether in the office, on a plane, or at the beach. The Power Pack delivers a boost of energy while traveling; the portable charger can charge three devices simultaneously. The optimized charging process protects the battery and extends the lifespan of your phone, tablet, and more. Certified cells guarantee the highest quality and safe charging: overcharge, overvoltage, overheating, and short-circuit protection. Small and lightweight: The mobile charger fits in any pocket and carry-on luggage. Maximum compatibility for all phones, tablets, and other devices, such as smartwatches, digital cameras, or Bluetooth headphones. The cable sheath and the casing of the Power Pack are made from 100% recycled materials—good for you and good for the environment. A single charge of the powerful battery pack is enough to use the Samsung Galaxy S21+ for an additional 165 hours. The Power Pack is fully charged in 19 hours via the USB-C port. The integrated LED capacity indicator shows in four levels (100%, 75%, 50%, 25%) how much power is still available. 2 inputs: USB-C and Micro-USB. 3 outputs: 2x USB-A, 1x USB-C.