TelephoneStuff.com Plantronics Top-Of-The-Line Headset Amplifier with Headset S20

All in one headset amplifier with headset. Features: - All-in-One - Under the telephone accessory deck hosts Plantronics top-of-the-line A20 amplifier, cord management, DuoSet convertible headset, on-line indicator and headset stand - Easy Adjustment - Audible and visual cues simplify the adjustment of incoming and outgoing volume, tone control and mute - DuoSet Headset - Convertible for either over-the-head or over-the-ear use with new conformable earhook - Improved Sound Quality - Unique SoundGuard Plus and Call Clarity technologies for superior sound - Easy Installation - Sets up in minutes with plug-and-play automatic conifguration and seamless telephone integration - Auto-configuration - Audible and visual cues for easy adjustment - Receive and transmit volume control - Variable placement headset stand - Tone-control - Mute selector - Adjustable accessory deck - Connects to single- or multi-line corded phone - Cord management - Six foot corded On-line indicator - Headset stand - Quick Disconnect coil cable connects to all Plantronics H-series headsets