Features: 1. ONE DEVICE, UNLIMITED CHAOS: The AnnoyingPCB is the ultimate prank or revenge prank. Simply activate the sound machine and hide it. It will beep, scream or make a cricket sound at random intervals of 5 to 45 minutes. Perfect for April Fools' Day pranks on your friends or colleagues. 2. COMPACT AND LIGHTWEIGHT: This super small annoying sound device can be easily hidden in most places. This little sound trick is discreet and hard to find. 3. 4 TYPES OF SOUND: With the push of a button, you can easily change the sound. The sounds include: a normal beep, a loud scream and a cricket chirping. 4. EASY TO HIDE: Prank your friends, neighbors or coworkers and drive them crazy Hide it in a drawer with things in it or a cabinet near other devices that already beep. Attach it under a desk, behind a monitor, inside a trash can or in a suspended ceiling. 5. PACKAGE INCLUDES: 1 x Buzzer, 1 x User Manual, 2 x Button Batteries (one for the product itself + one for spare), 2 x Round Double-sided Adhesive Tapes. Specification: Material: Alloy Color: Multicolor Product Size: 6 x 6 x 1.5 cm Product Weight: 25 g Package Includes: 1 x Buzzer 1 x User Manual 2 x Button Batteries (one for the product itself + one for spare) 2 x Round Double-sided Adhesive Tapes