433MHz Wireless Relay Switch 12V Working

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=IzR20jEMpSQ

please look the video in this link, the video will help you learn how to use it. thanks!!!! • you can contact us in our alibaba website: https://homewell007.en.alibaba.com • my whatsapp: +86-18319023303.

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