hands-free sound clear easy operation long Continuous call time:15 hours standby time:900 hours Dirair X02 Vehicular navigation bluetooth hands-freeThree characteristic1.sound clear;2. easy operation3.fashion SPECIFICATION ModelX02Size80*80*22MMBluetooth VersionBluetooth V2.1+EDRRate Range2.402-2.480GHZConnect Distance10-20MSupport AgreementHSP,HFP,A2DPCharge Time2 hourStandby Time900 ...