Is Wifi environment necessary? カスタマーセンター September 19, 2017 03:22 Updated Follow No, Wifi environment is not required. Related articles What is the communication method? Can I operate the NinjaLock in places where has no signal? If I have a smartphone, can I operate the NinjaLock remotely? Can I operate the NinjaLock from a tablet? Can I attach the NinjaLock onto sliding doors? Comments 0 comments Please sign in to leave a comment.