Nold Open is a smartphone-controlled, Bluetooth enabled gate opener device which is compatible with any electric garage doors, gates or barriers. One of the main product advantages is that Nold Open works with Bluetooth Smart technology; therefore it doesn’t depend on a data plan or unreliable wiﬁ connection. You can connect an unlimited number of smartphones and handle an unlimited number of Nold devices with one, free, user-friendly application. You can grant access to your friends & family members easily by sending an invitation in email, and you can revoke access just as easily. With the simple-to-use cloud website, you can even track who has access to your gates or garage doors.