Speaker Phone - Logitech P710E

Frequency Response: 140Hz-16KHz Support wideband speech and HIFI audio Volume: adjustable to 85 dBA at 1.6 ft (0.5 meter) Omni-directional microphone, 360-degree coverage Frequency Response: 50Hz-8KHz Supports wideband and narrowband speech 3.5mm jack Frequency Response: 20Hz-20KHz Audio Enhancements Acoustic echo canceller Noise reduction Automatic gain control Speakerphone Travel case User documentation Phone spacer 1 year warranty and delivery done countrywide