Feature 1ANNOYING NOISE MAKER: The annoying prank screams or crickets every about 530 minutes, simply activate the stuff and conceal it. All that is left is to wait and see how others go crazy. 2LIGHTWEIGHT DESGIN: The prank kit is compact and lightweight, easy to conceal in many unobtrusive places. The prank device is also light enough to let tape or magnets hold it in place. 3SUITABLE SCENES: The random stuff also can hide in some unexpected corners, such as under the table and chair, the back of the potted plant leaf, inside the mattress or sofa and any other corners 4BATTERY TYPE: Annoying noise maker built in 1pcs 240mAh button cell battery, which means the capacity is large enough to last a long time. 5PERFECT GIFT: You can give this annoying noise maker as a gift to your friends on Halloween or April Fool Day. This helps to promote friendship.SpecificationItem Type: Annoying Noise MakerMaterial: AlloyProduct Size: Approx. 4.5 x 2 x 2cm / 1.8 x 0.8 x 0.8inBattery: 1 x button cell CR2032 240mAh (built in) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Annoying Noise Maker1 x Manual