Features: Ensures safe parking with the parking aid warning sensor speaker, crafted from ABS materials for long lasting performances. Featuring a waterproof design, loud & clear sound alerts, and easy plugs and play installation, this sensor speaker resists high temperatures and corrosion for reliable operation in all weathers conditions. Ideal for car owners, professional mechanic, and car enthusiasts for their vehicle's parking system. Perfect for daily vehicle maintenance, post accident repairs, or custom car modifications requiring a factory specifications parking aid component. Engineered to meet automotive industry standards, this low power consumption device maintains original electrical system integrity while delivering crisp warning tones. Specifications: Component:ABS Size: Approx.6.5cm/2.56inch Color:Black Part Number:4L1Z15K864A Package Includes: 1pcs Backup Alarm Buzzer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.