["brand new and high quality\r\n\r\nFeatures:\r\nElectronic tool equipment Smart-family, Repair tools for the for Smart family, Computer & Office, Consumer Electronics, Electronic Components & Supplies, Phones & Telecommunications, Office & School Supplies.\r\nSmall size, high sensitivity, low power consumption, flexible operation.\r\nQuickly respond and send out signal to the mating unit for easy control when press the button.\r\nDesigned with one button, it is easy to use. And the remote control distance can reach 50m in the open area.\r\nWidely used in remote control switch, remote control garage door, remote control electric shutter, alarm unit, industrial control products, etc.\r\nReceiver & Transmitter only, other accessories demo in the picture are not included!\r\n\r\nWorking/output way:\r\n1. Toggle/Self-Lock: Press->On; Press again->Off\r\npress one button for one for time is working/ON .press the same button again is stop/OFF .(1 channel switch(receiver) need 1 button remote control (transmitter).\r\n2. Latched/Inter-Lock: Press->On; Press other button->Off\r\npress one button is working/ON ,press another button is stop/OFF . ( 1 channel switch( receiver) need 2 buttons remote control (transmitter). \r\n3. Momentary/Jog: Press and hold->On; Release->Off\r\nKeep pressing one button is working /ON. loosen your finger is stop/OFF .1 channel switch(receiver) need 1 button remote control (transmitter ) \r\n4. Learn:Press the learning code,Loosen your finger ,press any button of the remote control ,the indicator flash 2 times and off .it means learning successfully .\r\n5. Remove:Press the learning button about 8 seconds , the indicator turn on to off , it means the Code had been removed successfully.\r\n\r\nSpecification:\r\nMaterial: Plastic + Metal\r\nChannel: 1 CH\r\nButtons: 1 Button \r\nOperating Frequency: 433MHz\r\nPower Supply: Built-in Button Battery \r\nRemote Control Distance: 50m/ 164.04ft\r\nColor: Black, White\r\nSize: One Size\r\nDimameter: 4.5cm/ 1.77in\r\nHeight: 1.3cm/ 0.51in\r\nQuantity: 1 Pc\r\n\r\nNote:\r\n1.No retail package.\r\n2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 Pc x Transmitter"]