Item Type: Crickets Sound ToyMaterial: Plastic, electronic componentsSize: Approx. 8.3 x 4.3 x 1cm or 3.3 x 1.7 x 0.4in Battery: 3 x 1.5V 160mah LE44 Button Battery (Included) .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 } 1Clear Chirping: Crickets sound toy with clear sound, can be stick under the desk, chirping of crickets will continue for about 46 minutes. 2Prevent Find: Crickets noise toy is difficult to find out where the sound is coming from, and you will think that there are really crickets in the room. 3Compact Size: Crickets sound prank toy is small in size and light in weight, which allow you can put it at anywhere without finding. 4Interesting Gift: Crickets noise toy is the perfect gag gift, joke or even revenge prank, which can be send to your kids, friends, or families. 5Auto Off: Press the switch to call once is open state, press the switch to call 2 times is closed state, with power protection system, which will turn off after pressing the switch for 15 minutes.