Upgraded Phone App Kill Battery Switch: Control your car battery with the upgraded app turn it on or off anytime within 20m ( 65 ft) range. Monitor battery status in real time and easily disconnect power to ensure safety. Perfect for daily use, travel, or long-term parking Battery Cut Off Switch of Vehicle: Power disconnect set can prevent the car battery from running out due to long-term parking, line aging, and forgetting to turn off the lights. It can maximize the storage of car battery power and effectively protect and extend the service life of the car battery.Operating voltage: 12V/24V; rated current: 240A; peak starting current: 1200A Widely Applicable Battery Shut-Off Switch: Remotely control via phone app. This battery disconnect switch is compatible with cars, boats, campers, RVs, ships, travel trailers, motorcycles, and vehicles with displacement under 4.0L even on the beach Easy to Install & High-Quality Materials: Install these power shut-off switches yourself with ease and high-quality metal for long-lasting durability. Featuring a low standby current of just 0.005A, they won t drain your car battery unlike the original car system, which can exceed 65mA Reliable & Ready Anti-Theft Kill Power Switch: This smart car disconnect switch features a built-in power-off protection function. If the circuit is accidentally left on, it will automatically disconnect after a 5-minute delay when the battery voltage drops below 11.8V or rises between 17V 24V System Compatibility Android devices require Android 8.0 or higher; iOS devices require iOS 12.0 or higher to ensure stable connection and full functionality Dual App & Remote Control : Unlike others that offer only one control method, our battery switch lets you choose phone app (20m / 65ft range) or traditional remote, giving you maximum convenience and safety.