4.Insure stable and longer work depending on power management5.Communication with computer via Microsoft ActiveSync.6.Precise positioning.7.Combined with MP3 and MP4 in one for your entertainment1.CPU : SAMSUNG ARM920T S3C2440A 300/400MHz2.Flash memory : 32/64/128/256/512/1G3.EMS Memory: Low power 64MB4.LCD display : LTV 350QV-F04,Transmissive with Micro Reflective TFT,76.9mm(H)*63.9mm(V)*3.15mm(D),320RGB(H)*240(V)pixels,250cd/m2,C/R=300,6LEDs backlights.5.Touch screen : Sensitive touched and wearable screen6.USB: USB Client 1.1,full-sppeed(12Mbps),Mini USB Interface7.SD : SD/MMC slot, 4GB SD card could be supported8.Audio Frequency : Single track earphone(1w,8ohm or 2w,4ohm) with input horn, Hi-fistereo 20mA/32ohm mike-phone.9.Key : back to main menu/sleep/wake up/lock/increasing volume/decreasing volume/(hidden)Re-set10.Connected interface :3.3V connected to GPS module11.Switch :the switch of batteries12.Interface for outside antenna : put on the input antenna13.GPS Receiver : Module and input antenna14.GPS : SiRF Star III (optional),cold start :15.Battery : 1100-1600mA/3.7V, Rechargeable lithium battery, Charge frequency between750-1000mA16.Power adapter : 120/230V general purpose adapter 5V/2A17.Connected interface : 5V DC, socket18.Auto Charger : from 12V to 5V with 2Am19.Statement of LED light: After connecting to power, red LED light, the batteryis been charging ,or blue LED light, the battery has been full charged.20.Work temperature : operating temperature in range from 0 to 60 grade Celsius,storing temperature in range from minus 20 to 60 degree Celsius.21.Dimension : 91mm*76mm*21mm22.Operating system : WinCE.Net 4.2 Core Version23.Navigation software : third part offering24.Video software : support WMV9, MPEG4,MPEG4,Divx 5.0,4.03.11,Xvid,MPEG2(Max 320*240),WMA,ASF,AVIformat25.Audio software : support WMV9,MP3,and WAV format26.Browsing picture software : Electro-album, supporting JPG,GIF,BMP, PNG , etcFormat27.Reading E-book software : Support TXT format28.System configuration : Adjust background/set time/adjust volume/ power management/infoof system29.Up-grade system : by SD Memory Card30.Up-grade application: by SD Memory Card31.Up-grade picture of system starting : by SD Memory Card producing area:China payment:T/T,L/C supplying capacity:100,000sets/month