General description The Car Marten Repellent - 2025 Upgrade is designed to provide effective long-term protection against martens for your vehicle. Featuring three working modes—variable frequency (20-50 kHz), fixed frequency (25 kHz), and four flashing lights—it automatically switches modes every 30, 60, or 90 seconds to prevent martens from becoming accustomed to the sound, ensuring your car remains protected. Technical specifications Working modes: Variable frequency 20-50 kHz, fixed frequency 25 kHz Power supply: Connects to a 12V car battery or Type-C to a 230V household socket Material: High-quality eco-friendly ABS, heat resistant Compatibility and accessories Compatible with all car models Installation Easy installation within 5 minutes Can be connected to a 12V car battery or a 230V household socket Usage Can be used in various locations: car, engine compartment, attic, house, garden Automatically switches to operating mode 90 seconds after the vehicle stops Other information