Major designing features:Port: Single input port & Single output USB charging port. LED Equipped with 2.4 W LED torch Temperature durability: The Li-Polymer batteries are provided in the power banks to ensure protection from heat sensitivity and temperature effects. Superior Battery Performance: Good quality battery supportability of 6000 mAh to manage for long hours of duration. Efficiency: Better efficiency of using as comparable of other devices. Lithium Polymer: K3 is fabricated by Lithium Polymer battery providing better charging capacity with 6000 mAh that can charge your Smart Phone at least 3-4 times. It has high tendency for heat resistance and temperature control.Capacity: Have a capacity of 6000 mAh, Less maintenance required, Superior Energy density .Negligible Energy loss during Charging. Supportability: K3 Power bank supports your devices in all aspects by providing a flow up to 6000 mAh to charge your electronic gadgets. You can continuously charge your smart phone, tablets, Smart Watch, Portable Speakers, GPS System, and Cameras etc. Prime Characteristic: The K3 Power Bank has a featured LED torch of 2.4 W with a toggle button to on and off the torch light. It also has indicative lights which indicate the remaining power in power bank & charging status.