Feature: Wireless control. You can turn on/ off the receiver with transmitter (remote control) from any place within a reliable distance. Wireless RF signal can pass through walls, floors, doors or windows. Adopt single chip technology to build millions of code. One/several transmitters can control one/several receivers simultaneously. Two or more transmitter & receivers set can be used in the same place. Transmitting Frequency: 315MHz Vibration Receiver: Model No.: Z-04 Mode: Vibration Decode: by learning Power Supply: 1 x AAA 1.5V Battery (Not included) Size: 77mm x 38mm x 17mm Usage: 1) Press and holdbutton: The receiver vibrates. 2) Release the button: The receiver stops vibration. How to pair the transmitter to the receiver: 1) Press the learning button of receiver for 1- 2 seconds; The LED on the receiver flashes one time. The receiver enters into status of LEARNING. 2) Press any one button on transmitterwithin 15 seconds. If the LED is on (or the receiver vibrates), it means learning is successful. 4) The receiver can learn several remote controls with different codes. Delete all transmitters: We have learned remote control to the receiver. If you don’t want the receiver to work with the remote control, you can delete all codes of remote controls, which are stored in the receiver. Operation: Press and hold the learning button of receiver until signal LED from on to off (or the receiver from vibrate to stop vibration); release the learning button. That means all stored codes have been deleted successfully.