Vantrue Element 3 User Manual page 12

3. Thoroughly clean the windshield with water or alcohol, then wipe it with
a dry cloth. Stick the electrostatic sticker behind the rear-view mirror,
which is the recommended position to prevent blocking your view while
driving.
EN EN
Note: The electrostatic stickers with two-sided protective film. Please
remove the protective film from No. 1, paste the electrostatic sticker
on the windshield, and then remove the protective film from No.2.
4. Remove the 3M tape from the mount, then fix the mount and camera
on the electrostatics stickers.
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Electrostatic sticker