This handheld led fan is made of ABS and measures 1-1/2 inches*2-1/4 inches*4-1/4 inches.It’s powered by 3 triple A batteries and several groups of letters,numbers and symbols can be programmed.Some regular led colors such as red,blue or green are available.Turn on the fan by pressing the button and message will be played in a loop.This portable fan comes with a black lanyard,which can be hung around your necks.Custom your logo or slogan on fan housing to spread your brand to wherever your customers have been! Made from abs plastic material, measuring 1.5 * 2.25 * 4.25 inches, this custom handheld led programmed message fan with lanyard. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Lightweight, durable clip, easy to display.