Description: Funny Gift: 4 kinds of sounds, each time you press the switch, you can choose a different sound, , perfect to your friends, partners, or co workers. Easy to Hide: Irritating noisemaker, lightweight and compact, can hide in most places easily, hard to find it. How to Use: Funny hidden annoying beeper, easy to use, just turn them on, noise, then just wait and drive them insane. Hard to Locate: Hidden noise maker, It's hard to locate the sound because it makes a random sound interval about 5 to 45 minutes. Hidden Hint: Office devices, you can hide insides a drawer, near the electrical appliance, in the potted plant, above the chandelier, inside a tissue box, etc. Specification: Material:Copper Resin Size Chart: 4cmx2cm/1.57inchx0.79inch Package Includes: 1Noise Maker Beeper Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.