- Konftel 300M 3G/GSM conference phone - Perfect for companies that have chosen a mobile communications solution - Intended for use in mobile networks - Omnisound 2.0 ensures crystal-clear sound on all calls - Omnidirectional microphone and three speakers for optimal audio performance - Battery provides up to 30 hours of talk time and is charged when the Konftel 300M is placed on the accompanying charging cradle - Supports recording to an SD memory card - perfect for interviews, documentation or simply as a reminder of important calls and meetings; can also be used as a dictaphone - Multi-party calls and conference guide - mobile operator's network determines the number of participants in multi-party calls, but normally up to 6 people can connect - Conference guide, which stores call groups, rings all the parties simultaneously at the touch of a button - USB connection for VoIP calls and UC environments - Line mode switches between and combines mobile and USB connections - Expansion microphones for larger meetings - OmniSound® 2.0: Wideband via USB - Microphone: Omnidirectional, 360° - Frequency range: 3G/2G 200-3300 Hz, USB 200-7000 Hz - Reception area: Up to 30 m2, > 10 persons - Range with expansion microphones: Up to 70 m2, > 16 persons - Volume: Max. 90 db SPL 0.5 m - Equalizer: dark, neutral and bright - GSM 850/900/1800 - 3G/UMTS 900/2100 - USB 2.0. Compatible w