Feature:1. Automatic Safety Relay: The remote relay adopts RF technology, and the learning code of the 433.92MHZ wireless transmission module has low repetition rate and relearning mode, with high safety.2. High Sensitivity: The receiver module provides high signal sensitivity and super anti jamming, the remote control distance is long, the remote control range up to about 75ft/23m and the signal is stable.3. Anti Interference: The wireless relay remote control adopts non directional wireless coding technology, which can be controlled independently without interfering with each other.4. Wide Application: This universal 12V wireless relay remote control kit can be used for garage door, offroad vehicle winch, ship winch, etc., high performance and strong reliability.5. Premium Material: Relay remote switch is made of upgraded premium ABS plastic, this remote control is wearproof, antiaging, high temperature resistant, not easy to break.Specification:Item Type: Wireless Relay Remote ControlMaterial: ABSThe Farthest Remote Control Distance: Approx. 75ft/23mReceiver Receiving Frequency: 433.92MHZRemote Control Battery Type: 12V 27A Alkaline Zinc Manganese Battery x 1 (Built in )Remote Control Battery Capacity: 30mah (Built in )Applicable Type: Universal 12V wireless control kit, can be used for garage door offroad vehicle winch, ship winch, etc..Package List:1 x Remote Control1 x Relay 1 x ManualNote:The wireless remote control kit is not suitable for winches or cranes in industrial applications (commercial vehicle trucks or transport vehicles, wreckers, cranes) or any other application without a remote control application.