Featuresr premium componentsr rated at 2500mah this ultra thin power bank adopts premium lithium polymer battery which is more stable and safe than li ion batteryr built in micro usb cable lightning adapterr both the built in micro usb cable and built in apple mfi certified lightning adapter are neatly tucked away ready to use at any situationr fast charging speedr support rapid charging up to 1 amp current for popular smartphones or mobile devices with a micro usb port or lightning port