Gps car navigator Product features Build-in sirfstar·d chipset. Receiving 20 parallel channels. Portable navigation device, flip antenna, slim and compact size, can be installed in any model of automobile. Turn-by-turn features quickly give you the best route to reach your destination. Touch-screen operation makes for safe driving. High-quality mp3 playback and high-resolution image display. Convenient downloading of map information between sd storage media and computer. 262k-color 3.5" tft lcd monitor, the optimal monitor for human eyesight. Specifications Integrated gps receiver 20 parallel channels Handheld software(pre-loaded) Companion cd: adobe acrobat reader for pocket pc Centrality atlas processor at 200 mhz. O.S. Microsoft windows ce.Net 4.2 Manual Memory 32 mb flash memory and 64mb sdram for operating system and embedded applications Weight < 180 g. Size 125.5(l)x75.8(w)x21(h) mm (h:26.5 antenna included ) Car holder / charger input voltage : 11v. ~ 28v. Output voltage : 5.4v. ¼i 0.3v. Battery rechargeable 1050 mah. Li-ion 8 hours battery life when backlight is inactive. 3 hours to fully charge Extension slot:sd Display 3.5" high-brightness & contrast ratio transflective tft lcd (262k colors) with 240 x 320 (qvga) resolution Led red/green led for battery charging status Audio built-in 15 mm speaker and stereo earphone jack Operation temperature 0f- ~ 55f- Storage temperature20f- ~ 70f- Proprietary 24-pin connector:usb client ; dc power in Special keys and buttons: 5-way directional pad (up, down, left, right, enter) ; four quick-launch application buttons