extended lightning connector works with most cases certified by apple for iphone 5 amp later lithium ion power cells provide high capacity in a compact size led battery indicator chwwwiwalkusacomproductlink me 3000large link 3000l and device simultaneously specifications certificates rohs compliance y design charger compatibility smartphone colour of product gold compatibility iphone 66plus55s5c number of simultaneously connected devices max 1 ergonomics led indicators y packaging