... , /, =, *, !, $, &, @, #, ?, ., ', :," " and ( ) Each message: maximum 16 characters (including spaces) Different LED light colors are available Battery included: 3 x AAA Self ... 7 daysLogo :Customized logo is available promotion mini led message fan:Material:ABSlogo:customLED colour:red,yellow,blue, ... green,etc.SpecificationsHand Mini LED Fan We set customer's company name/logo/ ...