... .2cmUnit weight:30g LED: 0.5 W high brightness LEDFuntion:: TF card reader and flashlight; blue led light or flash ... yellow, white, pink, black) The product applies to students,home,office,outdoor,emergency eventsfuntion:1. Patrol, emergency……Convenient and safety ... usb interface of the flashlight, TF card, SD card, flash card, memory card, all card reader led flashlightthen plugs into the computer's ...