1、It can replace the door opening button or the switch of other devices, and is widely used in lifting controllers, automobiles, household appliances, machine tools, alarm systems and other automatic control fields. 2、With automatic lock function and automatic adjustment function, automatic switch, safety protection and circuit conversion can be carried out. 3、The 433MHz frequency can ensure sensitive and powerful signal reception and transmission with stable performance. 4、High‑quality plastic materials and professional PCB circuit boards are safe and noise‑free, no sparks, corrosion‑proof, moisture‑proof, and vibration‑proof. 5、Equipped with a portable remote control for easy remote operation. Lightweight and compact size, perfect portability and adaptability, easy to use. Item Type: Wireless Switch Receiver + Remote Control Transmitter Kit Material: ABS PlasticFrequency: 433MHZ Number of Handles That Can Be Added: 16 Pairing Method: Learning code Working Voltage: DC 12V Working Current: 0.08A Receiving Distance: Approx. 20 meters/65.6ft Settable Modes: Inching, self-locking, interlocking Delay Can Be Set: 5 seconds, 10 seconds, 15 seconds, 20 seconds Power Supply: 1 x 80mah CR2025 button battery (built-in battery in the remote control) How to Use: 1. Connect the receiver to the device to be controlled. 2. Use the remote control to control the switch of the device. 1 x Switch Receiver 1 x Remote Control Transmitter