A speakerphone is a telephone with a microphone and loudspeaker provided separately from those in the handset. This device allows multiple persons to participate in a conversation. The loudspeaker broadcasts the voice or voices of those on the other end of the telephone line, while the microphone captures all voices of those using the speakerphone.

Many telephones have an integrated speakerphone function which can be activated by pushing a single button. This button transfers the sound input and output from the handset to the ambient microphone and loudspeaker. Devices designed specifically for speakerphone use often have multiple microphone inputs arranged radially around the device to maximize sound input, such as may occur around a conference table. The most sophisticated units allow the connection of additional satellite microphones that can be placed some distance from the main unit.

Speakerphones may be broadly divided into two classes of Duplex:

Half-duplex speakerphones only allow sound to travel in one direction at a time, either: 1) into the speakerphone from the telephone line and out of its internal speaker to its user, or 2) from its user, into the microphone, and out through the telephone line. While the users of the speakerphone are speaking, the phone only transmits sound to the telephone line; its internal speaker is cut-off and no sound arriving from the telephone line can be heard by the user. While the user of the speakerphone is quiet, the speakerphone only receives sound from the telephone line and its internal speaker broadcasts that sound to its user. There is a very definite, noticeable switching action each time the phone "changes directions" and a cough or other transient noise in the room may interrupt incoming sound from the far end of the telephone connection.

Kylie Ann Minogue, OBE ( /ˈkaɪliː mɨˈnoʊɡ/; born 28 May 1968) — often known simply as Kylie — is an Australian singer, recording artist, songwriter, showgirl, and actress. After beginning her career as a child actress on Australian television, she achieved recognition through her role in the television soap opera Neighbours, before commencing her career as a recording artist in 1987. Her first single, "Locomotion", spent seven weeks at number one on the Australian singles chart and became the highest selling single of the decade. This led to a contract with songwriters and producers Stock, Aitken & Waterman. Her debut album, Kylie (1988), and the single "I Should Be So Lucky", each reached number one in the United Kingdom, and over the next two years, her first 13 singles reached the British top ten. Her debut film, The Delinquents (1989) was a box-office hit in Australia and the UK, and received generally positive reviews.

Initially presented as a "girl next door", Minogue attempted to convey a more mature style in her music and public image. Her singles were well received, but after four albums her record sales were declining, and she left Stock, Aitken & Waterman in 1992 to establish herself as an independent performer. Her next single, "Confide in Me", reached number one in Australia and was a hit in several European countries in 1994, and a duet with Nick Cave, "Where the Wild Roses Grow", brought Minogue a greater degree of artistic credibility. Drawing inspiration from a range of musical styles and artists, Minogue took creative control over the songwriting for her next album, Impossible Princess (1997). It failed to attract strong reviews or sales in the UK, but was successful in Australia.