Ultrasonic Mouse Repeller Rat Rodent Deterrent for Car Wire Engine Pest Control Description: 100% brand new and high quality. Safety: Ultrasound will not interfere with people or pets, and will not kill pests and mice, just drive them away, no need to worry about dead pests in the car. Frequency Conversion Output: The product uses a sweep frequency output and a fixed frequency output, which reduces the hearing resistance of mice and makes it easier to function. Emits a combination of dual LED flashlights and fluctuating ultra-sonic to keep rodents away and discourage their return visits. Smart On/Off- Can automatically sense the running state of the car, and automatically stop working after the car is started. It will automatically start to work 5 minutes after the car stops. The product will detect the battery voltage during operation. If the battery voltage is too low (less than 9.2V), the product will sound an alarm to indicate that the voltage is too low and will no longer work at this time to prevent battery power loss and protect the battery. When the battery voltage is restored, the product will automatically stop alarming and enter the standby state. Unique Design: Designed for vehicles, but the compact design and cordless connection, easy to place on flat surface or mount with included zip ties, it can be utilized almost everywhere such as garage, attic. Specification: Material: ABS Working Voltage: DC 12V Working Current: 40mA Standby Current: 5mA Working Frequency: 12kHz-15kHz Effective Working Range: 40 Size: 8.4*8*3.1cm/3.3*3.15*1.22in Package Included: Rodent Mouse Repeller