Yanvi Solar Lightning Portable Power Bank For Iphone, Samsung, Sony & All Smart Handheld Devices. Smart Phones And Tablets Have Become The Fastest Medium Of Our Communication World & Necessity Of Daily Living. Stay Connected With Your Dear Ones And Be Updated With Your Professional Life Through Your Smart Phones And Tablets Even During Long Distance Travel. This Portable Power Bank Is Specially Designed To Meet Your Charging Needs During Outdoors And Emergencies. Carrying This Power Box Is Easy Due To Its Size And Comfortable Structure. It Features Led Display For Charging And Built In Intelligent Charging, Over Discharging With Short Circuit Protection Facility. You need to shake it to charge your gadget. Design is just superb Yanvi Solar Power Bank charging is an additional feature of the power bank. For better output via electricity, please use original cable of your mobile phones and devices.