POLYCOM VoiceStation 300 Voice Conferencing Device Additional Features: Polycom Acoustic Clarity full duplex (IEEE 1329 Type 1) Up to 7 ft. microphone pickup range Gated microphones with intelligent microphone mixing Dynamic Noise Reduction Network Interface: Analog PBX or public switched telephone 19-key telephone keypad including: - On-hook/Off-hook - Flash, Redial, Mute, Hold - Volume Up, Volume Down Microphone: 3 Sensitive microphones that offer 360-degree room coverage Frequency response: 300-3500 Hz Speakerphone: Frequency response: 300 to 3300 Hz Volume: Adjustable to 86 dBA SPL (peak) volume at 0.5 m Power: Power adapter - External Connections: 1 x Data port, 1 x Audio line out Dimensions: 9.5 x 9.25 x 30 Weight: 1.25 lbs. Parts: 1 year limited
