A 2.4" color display and a touch sensitive dial pad for easy caller ID viewing, dialing, answering, switching, and muting across devicesSupport for Bluetooth and corded headsets/headphones (dual 3.5mm jack)Ideal for home or private office workers with multiple communication devicesTalk time: Up to 5 hours (PA50 wireless mic)Wireless frequency: Bluetooth v2.1 + eSCOAudio performance: Wideband (up to 6,800 Hz), echo cancellation, noise reduction, full duplexCertified for Microsoft/LyncPL8365701