1. Noise Maker includes multiple sounds, such as Cricket Chirp, Beep and more, suitable to prank friends, co-workers or partners. 2. Random Noise Maker: Just turn it on, pick one of the available noise options and hide it. It will continue to sound off for a long time, working well as a prank stuff. 3. Easy to Hide: This random noise maker can be hidden easily in most places. It is light enough to be held by tape or a magnet. They can be used together or separately. 4. Hard to Locate: It's hard to pinpoint where the sound comes from due to the random chirping intervals of about 3-45 minutes. Before it runs out of power, it may affect the victim's mood. 5. Long Lasting Battery: Random Noise Maker won't stop working in a few days; the battery can support continuous operation for several months.