Gnnetcom GN 7170 Cordless Headset Telephone GN 7170 Cordless Headset Telephone Combines the handsfree convenience of a headset with the mobility of a cordless phone. Take and make calls, from up to 150 ft. away from your desk. Converts from over-the-head to over-the-ear style. Noise-filtering microphone. Ten-number speed dial, redial and mute. Supports Caller ID (40-number memory) and call waiting. No handset; headset required for use. Manufacturer’s two-year warranty.