Annoying Beeper Office Prank Device Pranks Beeping Stuff Party Prank Device For Friends April Fool's Day Tricky Noise Maker Gag Gifts for Adults It Includes Multiple Sounds, Cricket Chirp, Beep & More, very suitable to prank friends, co-workers or partners. (Using much more better in a quiet environment.) Long Lasting Battery Our noise maker prank won't die in a few days, The battery can easily support it continuously run several months. Easy to Hide This super small annoying beeping device can hide easily in most places. It is light enough for tape or a magnet to hold it.Use them together or separately to drive them crazy. Hard to Locate It's hard to pinpoint where the sound comes from, because of the Random Chirping intervals about 3-20 minutes, before it runs out of power, your victim's sanity will fail. So Sinister Just turn it on, pick one of the available noise options and hide it. Best part is it will continue to sound off for what seems like forever, worked great as a prank stuff. Package include: 1 x Prank Device Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)