and build-in light and USB cable
Exposure compensation: shift between 3 gears by 1/3 gear increments
you wont see any screws on the surface
metal conductive column×4
Operating systems: Android
Car Engine Start Key Push Button Ring Trim Aluminum Alloy Sticker Decoration for Mazda, For Mazda % Charger & Power and build-in light and USB1. Material: Aluminum Alloy 2. Easy installation wihtout any tools, double side 3M automotive adhesive tape is attached. 3. Decorate the one key start button to make your car unique. 4. Multiple colors are available. 5. Fits for Mazda. Specification: General Compatible with Mazda: Rui Yi, Axela, Attz, Atenza, CX 3, CX 5, 2, CX 9, CX 7, MX 5 Miata, 5, RX 8, 3, 6, Protege5, Tribute, B2500, Millenia, B4000, B3000, B2300, MX 3, Navajo, RX 7, Protege, MX