Feature: Brand new and high quality The device emits ultrasonic waves that make the rodents feel uncomfortable and run away. The device will automatically turn off when car is moving and turn on when car stops. The product is hard wired and powered by your vehicle’s battery. It is convenient, effective and environmentally friendly. This device is supplied with mounting and wiring hardware to connect to the car’s electrical circuit. It protects cables, wires and other rubber parts from rodent damage. Description: High-efficiency - Car rat repeller emits ultrasonic and infrasound to interfere mouses' auditory / nervous system and drive them away. The ultrasonic frequencies will constantly change not to make mouse have any "adaptability" and "immunity" Safe & Chemical Free - No more mouses chewing on your expensive car wires, keep safe driving and save expensive repair. Safely repel pests, rodents without killing them; No chemicals, no exterminator, harmless to human Energy Saving - Work 22 seconds, pause 22 seconds, then recirculate. Under Hood animal repeller built in vibration sensor, auto OFF when car is started, auto ON when car is parked after 120 seconds. Automatically alarm when battery voltage drops below 9V Multi-purpose - Mainly used to repel rats, also it has some inhibitory effect on cockroach, ant, spider, cricket, bug, flea, moth, etc. Designed for 12V vehicles and other place where a 12 Volt battery is available. Effective range:40㎡ Easy To Mount - All you have to do is connect the two cables to the car electrical circuit. Black cable to cathode(-), red cable to anode(+). Note: Sometimes extension cord may needed due to the different mounted place. Red LED indicator will flash when working. Specification: Power supply: car storage battery Working current: 2mA, 20μA Frequency: 12KHz-45KHz LED indicator: yes(periodic) Size:9.5cm/3.74inch x 6.5cm/2.56inch x 2.7cm/1.06inch. Color:Black Important Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included: 1Pcs x Rodent Repellent NO Retail Box. Packed Safely in Bubble Bag. #DC #12V #Ultrasonic #Mouse #Repeller #Vehicle #Rat #Rodent #Pest #Animal #Deterrent