Unwanted marten visits particularly frequently affect vehicles that are stationary for long periods. Effective protection for motor homes, electric-powered vehicles, classic cars and other irregularly moving vehicles is offered by the battery-powered. It is also ideal for electric vehicles. Regardless of the car battery, the protection effect is maintained by AA batteries, so the device does not rely on the vehicle electrical system as a power source. Multi-contact high-voltage brushes with positive and negative poles also penetrate the dense fur of the marten. This electrocutes the biting attackers, scaring them away but not injuring or killing them. Pulsating sinusoidal ultrasound emitted through the completely waterproof dome speaker completes the all-around defense.