Abstract: To provide a wearable device that detects a state of being worn on a body of a user. A wearable device includes: a main body; a first proximity sensor disposed on a first side surface of the main body; a second proximity sensor disposed on a second side surface of the main body, the second side surface forming an angle equal to or larger than a predetermined angle with the first side surface; and a determination unit that determines whether or not the main body is worn on a body of a user on the basis of a sensor signal of each of the first proximity sensor and the second proximity sensor. When the main body is worn on an ear of the user, the first side surface faces a cavum concha, and the second side surface faces an antitragus or an antihelix.

Abstract: There is provided a speaker device including a controller that controls assignment of a process to a key on the basis of whether or not the speaker device is stored in a case. The key is configured to be inputted to an operation section of the speaker device. The process is executed in a case where the key is inputted to the operation section.

Abstract: [Overview] [Problem to be Solved] It is desirable to provide technology that enables a process to be more effectively assigned to a key. [Solution] There is provided a speaker device including a controller that controls assignment of a process to a key on the basis of whether or not the speaker device is stored in a case. The key is configured to be inputted to an operation section of the speaker device. The process is executed in a case where the key is inputted to the operation section.