LED pin badge,logo card.,promotional gift batteries:LR927/CR927 use as normal time one or two years LED :can choose red , LED pin badge,logo card.,promotional giftbatteries:LR927/CR927battery:use as normal time one or two yearsLED :can choose red ,yellow ,green,blue.white.etc.backside: batteriesbutton:control by button backside .revolve the button is ok logo availablecan have several led