Special features: 1, phonebook storage capacity: max. 600 contacts 2, multi-languages of phonebook contac, support latin iso8859-1 4, backlighted lcd screen display in the mirror, to show call id and make a call from the mirror without touch your mobile 5, wide angle mirror to let your drive more saftey 6, full duplex 7, full dsp noise cancellation 8, digital volume control 9, last number redial 10, reject incoming call 11, full automatic reconnection 12, voice recognition dialing (if phone supports) 13, usb software upgradeable 32x20x5cm, weight:0.7kg