Abstract: A print head includes a generation portion that amplifies an input signal to generate a drive signal, an ejection portion that includes a first driving element driven by a drive signal, and ejects a liquid in response to the drive of the first driving element, a supply portion that includes a first switch for switching between supply and non-supply of the drive signal to the first driving element, and a sound emitting portion that includes a second driving element driven by the drive signal, and a second switch for switching between supply and non-supply of the drive signal to the second driving element, and emits sound in response to the drive of the second driving element, in which the first switch and the second switch are turned on exclusively.

Abstract: A vehicular aerodynamic device includes a towing detection unit configured to detect whether a towed vehicle is being towed by a vehicle; a flow adjusting device including a flow adjusting member and being configured such that the flow adjusting member is moved between a retracted position and a deployed position; and a flow adjusting device control unit configured to i) determine whether the towing detection unit detects that the towed vehicle is being towed, ii) determine a kind of the towed vehicle, and iii) control operation of the flow adjusting device in accordance with the determined kind of the towed vehicle or a traveling mode selected through operation performed by an occupant in the vehicle.

Abstract: A vehicular aerodynamic device includes a towing detection unit configured to detect whether a towed vehicle is being towed by a vehicle; a flow adjusting device including a flow adjusting member and being configured such that the flow adjusting member is moved between a retracted position and a deployed position; and a flow adjusting device control unit configured to i) determine whether the towing detection unit detects that the towed vehicle is being towed, ii) determine a kind of the towed vehicle, and iii) control operation of the flow adjusting device in accordance with the determined kind of the towed vehicle or a traveling mode selected through operation performed by an occupant in the vehicle.