E-TEN X500 PLUS, Manual

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Voice Command Satellite Navigation 3-3
2.
Please set navigation destination before driving. Do not operate this
system while driving.
3.
Please use this system with care. If any harm results from careless use of
this system, the responsibility for safe driving resides with the driver.
4.
GPS positioning is limited by weather and usage location (tall buildings,
tunnels, underpasses, trees, bridges). Most GPS do not work indoors, nor
can GPS signals penetrate buildings, car sun shades and heat reflective
film with metallic content. Please install GPS outdoors with clear line of
sight. Beneath the windscreen at the front of the car is a common choice,
and the windscreen should be free of heat reflective film.
5.
The GPS system is built and operated by the U.S. Department of Defense
which is also responsible for its maintenance and calibration. Any changes
made by them may affect the operation and accuracy of the GPS system.
6.
Wireless devices (mobile phones, speed radar detectors) will all interfere
with the satellite signal and cause unreliable signal reception.
7.
The GPS position fix is provided only for the driver’s reference and
should not affect actual driver behavior.
8.
The electronic map data provided in the navigation system is for normal
reference only and not intended for high precision applications. The user
should determine their exact location based on actual road conditions.
9.
The route provided by the navigation system, the audio cues and
intersection data are derived from recommended optimal route calculated
using the electronic map data. This is provided for the driver’s reference
only, the driver should decide their chosen route according to actual road
conditions.