Including both Headset and Handsfree profile,Maximum Sound function,Wireless Parking Sensor ...
  (1) Call service as cellphone.
  (2) Address book ,caller release..all have in cell.
  (3) Support voice dial.
  (4) Last 10 number redial.
  (5) Audio system transfer,play list profile。

Call handfree system:All cellphone base feature.
Parking sensor:automatically
Sound control system: keep away the road Noise,keep call and fm..sound clearly,voice control