32 ENGLISHJABRA PRO 945010. TECHNICAL SPECIFICATIONS10.1 JABRA PRO HEADSETOperating Environment:-10˚C to +55˚C (0˚C to +40˚C when charging); Up to 95% RH non condensing.Call Control:Multi-function button support for answer call, end call, reject call, redial, swap held calls; docking operations canalso answer and end calls.Volume Control and Microphone Mute:Controlled via touch panel on headset.Visual Indicator:Multi-colored LED indicates call status, battery level, pairing status and other events.Audio Indicators:Tones indicate incoming calls, low battery, volume level, microphone muting and other events; target phone canbe indicated by English voice tag or target-specific melody.Sound Quality:DSP noise reduction; echo cancellation; tone control; narrowband and wideband audio (selectable per phone type).Firmware Update:Updateable via USB interface when docked in the Jabra PRO base.Recharge:While docked in the Jabra PRO base.PC-based Configuration:All settings can be stored and loaded from a PC for backup and mass deployment.Wireless Standard:(CAT - iq) European DECT and U.S. DECT.DECT Range:For European DECT; up to 150 meters from Jabra PRO base to headset.For U.S. DECT; up to 135 meters from Jabra PRO base to headset.DECT Frequencies:US DECT: 1.92 - 1.93 GHz.EU DECT: 1.88 - 1.90 GHz.Wearing-styles:Earhook or headband (neckband is available as an accessory).Microphone Boom Arm Style:Midi.Speaker(s):Wideband speaker.Microphone:Noise-cancelling microphone.