2 x 18650 Powered Backup Battery Case w/ 1-LED / USB Port for Cell Phone + More - Black
Color: Black - PC (Polycarbonate) housing - Powered by 2 x 18650 batteries (not included) - Mini USB input port - USB output: DC 5V 1A - With 1-LED white light illumination - Suitable for your cell phone MP3 / MP4 player or other devices with USB charging cable