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.

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.

The new client introduces a number of brand new additions to their services, including a modern global chat feature, a fully responsive user interface, free voice servers and many upgraded audio functions.

The first public release of the TeamSpeak 3 SDK[7] was on June 5, 2008, with the integrated solution in the MMO game Vendetta Online.

[11] TeamSpeak 3 introduced the use of unique IDs, maintained in the program as identities, that are randomly generated at the time of a client's initial setup.

TeamSpeak 6 was released as beta on January 21, 2025, introducing major new features like screen sharing and the ability to purchase hosted servers directly through the app.

Low THD hardware and dual-microphone noise suppression help clean up the noisefloor to allow software-base gain with less of an impact to audio quality.

[citation needed] TeamSpeak was mentioned numerous times within South Park's episode titled "Make Love, Not Warcraft" which aired on October 4, 2006 on Comedy Central.