ClearOne 910-158-500-02 MAXAttach Conference Phone Additional Features: Echo Cancellation Tail time: 60 ms x 3 Noise Cancellation Dynamic noise cancellation Keypad Alphanumeric standard keypad Loudspeaker Volume: 90dBspl A weighted @ 1 ft Bandwidth: 200 Hz–3.3 kHz Record Output Connector: 2.5 mm mono audio jack Impedance: Speakerphone: Yes Power: Base unit: Auto-adjusting power module; 100-240 VAC; 50/60 Hz Connections: Analog PBX or PSTN line RJ-11C, -12 dBm nominal Dimensions: Phone unit: 10.5 x 10.5 x 3 Base unit: 4.25 x 5.5 x 2.5 Weight: Phon...