The CHAT® 50 personal speaker phone is a mobile audio peripheral that connects to a wide variety of devices and provides crystal-clear, hands-free audio communications. It provides unmatched full-duplex capability, which allows users to simultaneously speak and listen without audio cutting in and out. It also provides high-quality audio playback for music, gaming and other sound files. The CHAT 50 can be used in a variety of ways, and connects to the following devices: Laptops, PCs, or Macs - for use with: - Internet telephones, such as Skype or Vonage - VoIP softphones, such as Avaya, Cisco, Nortel - Web conferencing applications, such as LiveMeeting, Sametime, and WebEx. View our Web Collaboration Partners - Instant messaging with audio chat - Audio playback with media players, such as QuickTime, RealPlayer, Windows Media Player - PC-based gaming with TeamSpeak Telephones - for hands-free, full-duplex conversations Cell phones - for hands-free, full-duplex conversations Desktop video conferencing devices - for hands-free, full-duplex conversations iPods & MP3 players - for full-band audio playback (single speaker)