... bitGPS chipset: Built-in High sensitive GPS antenna, with port to external antenna SiRF III GPS Chipset (20 parallel channel)Routing: Calculate ... maximum storage of 2GAudio: Internal speaker/ Stereo earphone jack/ MIC/ FM audio transmitter Battery: Internal 1100mAH Lion Polymer Battery, Mini USB ... charger, Power adapter, USB cable, Standby touch pen, Optional: External GPS Antenna