Give attendees of your next seminar a clear way to identify themselves and a keepsake of the event with this colorful, wearable sound button. Each button has the ability to play jingles and make fun customizable noises up to ten seconds long. This product is also great for tradeshows to attract extra eyes. The sound is activated via a simple push button. The button has a pin-back attachment for easy securing. Batteries are included. Order now!