... Output Use conveniently&light weight Rechargeable Power Bank,6600mAh Mobile Phone Power Pack with Dual USB OutputSpecificationsSize: 110*62 ... *21mm 6600mAh Li-polymer battery universal rechargeable mobile power pack 5v LED capacity and working indicator Product Item number ... , business trip, outages, Camping & Hiking etc. Rechargeable Power Bank,6600mAh Mobile Phone Power Pack with Dual USB Output