A function executing device may comprise a first wireless interface according to a Bluetooth Low Energy scheme being capable of repeatedly sending an advertising signal. The function executing device may after a first advertising signal in which a first radio field intensity is used has been sent from the first wireless interface, receive a specific signal via the first wireless interface from a terminal device, change a radio field intensity used for sending the advertising signal from the first radio field intensity to a second radio field intensity lower than the first radio field intensity, and after a second advertising signal in which the second radio field intensity is used has been sent from the first wireless interface, establish a first wireless connection with the terminal device via the first wireless interface.