The Yodeling Gateway is the brains behind the Yodeling Wine system. It allows the Yodeling Wine mobile app to talk to all of the Yodeling Tags in your cellar. It connects to your home Wi-Fi network and also relays information such as temperature and battery levels to the Yodeling Wine Cloud.The Yodeler Gateway communicates to your Yodeler Tags. Depending on the size of Wine Cellar or the number of Cellar rooms will determine the number of units required.