... Ebook 4. Mp3/4, radar detector GPS navigation system 1. GPS navigation system Technical Specifications:SystemCPUCPU : Media Tek MT3351,468MHZflash ... CSR BLUECORE3Output power Class 2Transmission distance 10m(Max)Signal system NTSC/PALAudio playerMP3,WAV,MID,DAT,ASXVideo playerMP4,AVI ... -1300MAWork time2-2.5 HoursCharge time2-3 hours(The first time need to charge more than 6 hours)SpeakerSize ...