1.You will get 3 pranks PCB noise maker, which is the ultimate gag gift or revenge pranks, simply activate the noise maker and hide it; It will beep, screech, or make a cricket sound at random intervals of 5 to 25 minutes, a good April Fools Day prank for your friend or coworker.This PCB uses a high-capacity battery, and your victim will lose their mind before it runs out of power. 2.This device contains 7 types of noises to choose from.With the press of a button, you can easily change the sound. Noises include: a normal beep, a high pitch screech, and a cricket chirping and more. Take the crown as funniest prankster on April Fools. 3.1.69x 0.51 x 0.42 inch and 0.28 oz; This small annoying sound device can hide easily in most places.You can even use small stickers to stick it in an inconspicuous place.Once set and hidden, the sound from the interval upsets him/her and can't help but want to find it;As long as it hides well enough, no one can find it; Before finding it, the people who are looking for it will growl and become furious. 4.This set contains 3 machines, which can satisfy pranks with different voices in different positions at the same time. Make the victim more irritable. If not enough, you can also buy multiple sets of products at the same time. HIDDEN HINT: (Mimic) hide it near the electrical appliance that emits a beeping sound. Such as the vicinity of TV sets, refrigerators, air conditioners. (Unexpected corners) such as under the table and chair, the back of the potted plant, in the air-conditioning hole, near the exhaust port, near the pile of debris, above the chandelier...(Impossible places) such as: the top of the car glove box, inside the mattress or sofa, in the wooden floor or in the wall of the brick mezzanine...