... are ok. Besides, easy installation will release you from trouble.2 Unit Specification2.1 Brand: CSTModel:CSTR8002.2 ... Weight3.1 Kg20LanguageSimplified Chinese,Traditional Chinese,English,French,German, Japanese,Spanish,Italian,Portuguese, Russian21Operating temperature-20℃-80℃2.3 ... dynamic and highly dynamic: no matter the car from light into darkness or from the darkness into the light, or other ...