3g car gps navigation  Features :
1.4.3" wide LCD touch screen display with resolution of 480*272 pixels.
2. user interface:simple easy to operate.
3.Power management:keep the product to work longer and steadily.
4.Multiple searching options : By postcode(UK 7 digital postcode), an address,  part of an address, category, points of interests (POIs), favourite  destinations, or history.
5.Advanced speed camera warning: Lets you know when you are approaching a speed  camera so you can safely slow down.
5.System setting: FM Transmitter, Screen adjustment,Default  set,Volume,Power,Time and Date,Language,Sys Info
6.High-sensitivity reception antenna: All-weather real-time antenna receives  signal and can pinpoint you fast.
7.Excellent in receiving signal:accurate position fixing provides you the  satisfied navigating service.
8.Audio output: Support MP3 and WAV format,support loudspeaker,  earphones,support sequence playing,random playing and cycle playing.
9.Video Format: Support .WMV,ASF,AIV,3GP,MP4.
10.FM transimitter: Transmit sound from your device to your car sterio to easily  hear the voice guidance system.

3g car gps navigation Technical Specifications:

1.CPU: MediaTek MTK
2.GPS module: SiRF ATLAS-2Dual-Core Inside 
4.Built-in 4Gb memory
5.Display: 4.3" TFT True colour LCD touch screen.
6.Card slot: Micro S D card (Memory: supported reaches to 8GB,Micro S D Card is  not included)
7.Video Formats: WMV, AVI, ASF 3GP,MP3 FLV.
8.Audio Formats: WMA, MP3
9.Picture Browse: E-Album JPG, GIF, BMP, PNG.
10.E-book: Read txt.
11.Cold acquisition time: Approximately 42 seconds.
12.AutoLocate: Approximately 2 minutes.
13.Update rate: Once per second (continuously).
14.GPS accuracy: Position - less than 10 meters (33 feet), 95% typical.
15.Working humidity range:45% to 80%RH
16.Storage humitidy range:30% to 90% RH
17.Voice navigation: Yes.
18.AC Charger:100/220V charger,5V/1.5A
Car charger:D C9-24V,5V/1.5A
Battery charging port:D C 5V Port

3g car gps navigation  More pictures :