Feature: PCBs are the ultimate gift or prank. Just activate the noise maker and hide it. It beeps, screams, or crickets at random intervals between 5 and 45 minutes. This super small annoying sound device can be easily hidden in most places. This little noise prank is unremarkable and hard to find. It's ligh enough to let off-brand tape or magnets hold it in place. You don't choose just one annoying sound. You can easily change the sound at the touch of a button. Prank your friends, neighbors or colleagues and drive them crazy Hide it in a drawer with something in it, or in a cupboard near other appliances that are already beeping. Secure it under a desk, behind a monitor, in a tissue box, or in a drop ceiling. Product Description: Type: PCB Battery: CR2032 button battery Sound Type: 7 include: 1 x Annoying PCB (battery included) 1*Backup battery