Anntem Wireless Remote Control Switch 433mhz rf Transmitter and Receiver kit dc3.3v 3.7v 4v 4.5v Universal Battery Power Strip Mini Small Switch mos Circuit Micro Controller Module

We do everything we can to make the control module very small. Therefore, it cannot be incorrectly wired and cannot be used beyond the product specifications. Because the volume is too small, it is difficult to weld and use, so it is more suitable for professionals. If your product does not require strict size, it needs better usability. You can select other products of the same type in the store. Red line: (power supply positive and output positive, common). Black line: the negative pole of the module input power. Yellow line: negative output, control output on and off by remote control. For example, the red and black lines input 3.7V power, use the remote control to open, the module red and yellow output the same voltage 3.7V Click the "Unlock" button on the remote control and the module (red line yellow line) will output power and maintain output power. Click the "Lock" button on the remote control and the module (red line yellow line) disconnects the output.  The remote control is about 20 meters away from the open environment . RF Signal can penetrate the wall. The module remains in standby mode and the response speed is faster. Since the product needs to consume current during standby, if it is used for a long time, please select the power supply.