Features:1.3.5"all-in-one car navigator 2.All operation can be done by touch screen or buttons. 3.Compatible with MP4,MP3 players and digital entertainment systems 4.GPS: short satellite acquisition time 5.High-precision positioning: voice navigation function 6.Receive satellite signals even under bad conditions 7.Color TFT display:high-resolution and clear images 8.Changing E-map easily with upgrading function producing area:China payment:T/T,L/C supplying capacity:30k monthly