Main functionA: Caller’s name and number display (name and number)B: Unconnection warning after 5-10M(vibration warning)C: incoming vibration for alert D: answer/conversation/dialing/hangupE: synchronization/check/wipe DataF: time display

Technical SpecificationA:compatible to Bluetooth 2.1 (standard)B:Class 2 standard (10 meters)C:conform to Bluetooth hands-free standard (Hands-free Profile)V0.96D:working temperature -20°C~+75°CE:storage temperature -40°C~+85°CF:workable distance 5-10MG:auto energy-saving modeH:low power consumption mode/ high speed operation modeI:safety certificate, data encryption