This is a remote shutter that allows you to take photos remotely. You can use it if you purchase button batteries (see the second image), which are sold at 100-yen shops and the like. *Button batteries are not included. Turn on the switch on the side and connect via Bluetooth to use. Operation has been confirmed. Remote shutter compatible with iOS and Android, supporting shooting with easy operation. - Model Name: Remote Shutter - Supported OS: iOS, Android - Battery Type: CR2032 - Function: Camera remote control Thank you for viewing.