High-quality material: this premium parking aid set is made of high-quality PVC, durable, strong and wear-resistant, corrosion resistant and not easy to carry. The excellent design ensures durability and excellent ease of use. [Safe parking]: This parking sensor has a centimetre-accurate input accuracy of 30 cm to 150 cm and accurately indicates the distance of the obstacle to ensure that it does not collide with the rear obstacle when parking. Intelligent warning: when this car summer parking aid detects an obstacle, a Bibibi alarm sounds. The closer the distance, the louder the alarm sound and the data is displayed. The set includes: the kit contains 4 sensors, with 2.3 m cable (black), 1 drill, 1 speaker, 2.3 m cable, 1 control box, 1 power cable, 1 user manual (English language not guaranteed) Easy to install: this rear parking aid is easy to assemble, easy to install and has detailed assembly instructions (English language not guaranteed). Beginners can learn it quickly. If it needs to be replaced or repaired later, disassembly is also very easy. Description: Easy to install and suitable for almost all vehicles. A parking aid gives you extra safety when parking and helps to avoid unnecessary scratches and dents. Due to the frequency of the beeping signal, you will be acoustically informed about the distance to a possible obstacle. Equipped with detailed assembly instructions (English language not guaranteed). Help you prevent dangerous and expensive collisions. Specifications: Colour: black. Material: PVC. Dimensions: 9 x 2.3 x 6 cm (W x H x D). Cable length from display to control box: approx. 5 metres. Drill hole: 22 mm diameter / outer edge: 25 mm. Operating temperature: -30C to +80C. Total weight: approx. 800 g. Signal type: acoustic and visual. Operating voltage: 12 V DC. Installation position: rear. Rated current: 40-300 mA. Product type: electromagnetic sensor. Response distance: 0.0 m - 1.5 m. Connection: wired. Alarm distance: 0.0 - 2.0 m. Ultrasonic frequency: 40 kHz. Product type: universal parking aid sensor. Product group: parking sensors. Product series: PDC reversing alarm. Product suitable for: car. Box contents: 4 x sensors with 2480 mm cable (black). 1 x drill. 1 x speaker with 2520 mm cable. 1 x control box. 1 x power cable. 1 x user manual (English)