Provides Poly"s legendary voice quality at an affordable priceIdeally suited for conferences with 3-4 participants7" microphone rangeFits well on a desk or small tablePhone Lines: 1 Phone Features: Noise Reduction System Conference Call - 4 Users Interfaces/Ports: 1 x RJ-11 Buttons & Keys: 19 x Keypad Flash Button Redial Mute Button Hold Button Volume Control Hands-free Green Compliance Certificate/Authority: RoHSColor: gray9 1/4" W x 9 1/2" D x 3" H