Feature: 1. Long Range: Remote car battery disconnect switch system, kill your car power system with remote control, 160ft/48.78m control distance. 2. Convenient and Simple: This remote electro battery switch lets you move the trigger from under the hood to your hand. 3. Working Voltage: 12V remote power off switch, working voltage range 11‑15V, suitable for most cars, small trucks, agricultural vehicles, etc. 4. Low Power Consumption: The switch consumes 5 mA when it is in standby, and consumes about 3W when the switch is working, which is more energy efficient than new cars. 5. Stable Performance: External antenna makes the signal farther and stronger. Only for battery on/off, it can't start your engine. Default off design. Specification: Item Type: Remote battery disconnect switch Material: ABS, copper, silver Battery Model: CR2016 x 1 (built in) Battery Capacity: 75mAh Working Voltage: DC11-15V Rated Current: 120A-200A Starting Current: 200A-360A (less than ten seconds) Standby Current: 0.005A Switch Size: Approx. 45 x 45 x 45mm/1.77 x 1.77 x 1.77in Package List: 2 x Remote Control 1 x Main Power Switch 1 x Copper Terminal 2 x Battery Clip 1 x Copper Adapter Note: 1: After installation, when the relay switch is turned on, the battery power consumption will be increased. When leaving the car, the main power supply should be turned off with the remote control in time, so as to avoid power loss due to excessive power consumption and failure to start. 2: Since cutting off the power supply of the whole car will cause the alarm, on board computer, etc. to fail to work, please ensure that there is no effect after the power is cut off. 3: When driving normally, do not disconnect the relay switch, so as not to increase the voltage of the generator and damage the car electrical appliances. 4. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. How to use: Installation Method: 1: The red wire is connected to the positive pole of the battery, and the black wire is connected to the negative pole of the battery. This is the power supply for the switch, and the remote control switch consumes very little power. 2: The two large terminals on the relay switch are the main switch. One incoming line and one outgoing line, in no particular order, play the role of on off. 3: When controlling the on off of the negative pole, a large terminal is connected to the negative pole of the battery, and a large terminal is connected to the negative pole of the battery (the positive pole is also the same).