TeamSpeak (TS) is a proprietary voice-over-Internet Protocol (VoIP) application service for audio communication between users on a chat channel, much like a telephone conference call. The client software connects to a TeamSpeak server of the user's choice, from which the user may join chat channels. Users typically use headphones with a microphone; the target audience for TeamSpeak is gamers, who can use the software to communicate with other players on the same team of a multiplayer video game.