- Konftel 300M 3G/GSM conference phone- Perfect for panies that have chosen a mobile munications solution- Intended for use in mobile works- 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 acpanying 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 work 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 bines 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 with Microsoft Office Communicator Skype and other munications tools- Battery: 5200 mAh up to 30h talk time/270h standby- Charging stand: AC adapter 100-240 V AC/14 V DC electrical cable length 90 c- SIM with support for PIN/PUK- Phonebook: 500 contacts- Import/export via SIM card- Call groups: 20 groups- Supports recording to a 2GB SD memory card- Support for SMS text messages- Kensington security slot for anti-theft protection- Display screen: LCD 128x64 pixels (5x2.5 cm)- Alphanumeric Keypad: * # handset on handset off mute hold volume up volume down 5 buttons for navigation in the menu system line mode conference guide- Two year li