Number of simultaneously connected devices (max): 3 Black Mobile phone/Smartphone, Tablet Built-in display Charging source: USB Lithium 10000 mAh 37 Wh Fast charging USB Type-C connector 1 pc(s) The ChargeUp Boost 3 10K immediately charges your smartphone when you need it most. No reason to panic when your battery is about to die the ChargeUp Boost 3 10K has enough juice to restore your phone battery back to 100%, not just once, but up to 2.6 times. The ChargeUp Boost 3 10K can be used to power multiple USB devices, such as phones, tablets, smart watches, cameras, headphones and drones.2.6 phone chargesEnjoy more screen time with the power to charge your phone up to 2.6 times. Avoid the frantic search for the nearest power outlet the ChargeUp Boost 3 will restore your phone battery back to 100% wherever you are.Charge your devices quicklyQuickly and safely charge your favourite devices, including smartphones, headphones, smart watches, fitness bands and more. This power bank includes 1