The ClearOne Chat 70-U Conference Phone provides crystal clear, full-duplex, HD audio for unified communication, VoIP and other audio conferencing applications in the home or in the office or in travelling. Its main feature is a push-button that controls speaker mute, volume and call On/Off hook

It provides acoustic echo cancellation, noise cancellation and automatic audio level control and all are critical for natural, free-flowing conversation and clear, rich sound quality

Its applications include a unified communications applications, VoIP Applications, audio conferencing and video conferencing. It is perfect for personal use, for tele-marketing workers, for traveling professionals, for small office desktop, and for ad-hoc conferences at any time and at any place

It has high quality speakerphone capabilities on PCs and in laptops that are optimized for use with Lync including, incoming Lync calls ring on the CHAT 70-U new call control for Skype with volume up/down and mute control buttons. It provides you hand-free flexibility and comfort. You can replace PC’s speakers and microphone with high-quality audio. It is sleek, compact and has a portable design with true plug-and-play capability

The ClearOne Chat 70-U Conference Phone components include chat 70-U, Chat 70-U USB Cable and Chat 70-U Quick Starter Guide. Its specification about system requirements include Windows XP, Windows Vista, Windows 7, about connections include USB version 2.0 compatible with mini-B female, about controls include call control (hook), volume up, volume down, microphone mute, about speakers the bandwidth 220 Hz - 14 kHz, max output level 80 dB SPL@ 1 foot (0.30 meter), about microphone the bandwidth is 220 Hz - 10 kHz, about audio signal processing include Full-Duplex, acoustic echo cancellation (AEC), noise cancellation (NC), automatic gain control (AGC), about power the USB 5 VDC@ 500 mA maximum, about mechanical the Dimensions are (9.7 cm x 10.4 cm x 4.6 cm) and weight: 0.55 lbs (0.25 kg), and its operating temperature is 41 - 104° F (5 - 40° C)