Crescent shape led parking sensor with speech 1. Digital led showing obstacle distance. 2. Led1-y4 reporting the distance with the voice. 3. Led1-y4 alarm by chord music. 4. Led display with three colors (red , yellow & green). 5. Crescent shape digital display screen. 6. 2í½8 sensors are available. 7.Turn on/off the voice according to your desire. 8. All kinds of sensor colors and styles are available. 9. High quality and easy to install.