Operation system:Windows Mobile6.5
Screen size:3.7inch
Wifi:Wlan 802.11b/g
Color:Yellow/Black
Singal received:GPS/GLONASS/GALILEO/Beidou
Screen:128*62 OLED Screen
Channel:220 channels
Screen Size:3.5inch
GPS:L1 C/A, L2C, L2E, L5
Operate system:Windows Mobile 6. X
Keyboard:27 key number+control key
Software:SurvCE, FieldGenius
Model name:MG858S
Operating System:Windows
Accuarcy:Single-point: 1.2m