16 UNIQUE CONSTRUCTION THEMED SOUNDS - Sounds include - It's like having a construction site in your pocket! CONSTRUCTION THEMED SOUND MACHINE - It's like an entire construction site in your pocket! All your favorite construction sounds in one tiny sound machine! THE PERFECT GIFT FOR CONSTRUCTION LOVERS, COLLECTORS, AND ENTHUSIASTS - Great gift for any adult construction fan, construction worker, or collector. Perfect for Father's Day, Birthday, or Christmas. PERFECT FOR CONSTRUCTION THEMED BIRTHDAY PARTIES - Makes a great construction themed party favor or gift. BATTERIES INCLUDED - The Construction Themed Portable Electronic Sound Board Includes 3x LR44 / AG13 Batteries