Multiple Functions: Allows you to monitor the switch status of the door lock at anytime and anywhere, including viewing unlock records, remotely opening doors for friends or family, sharing e-keys or password. Coverage: The gateway can cover all areas (with network),you can control your lock anywhere when you successfully add it at home. This g2 wifi gateway only works with the smart door lock which use with TTLock app. Working status: Indicator light shows working status at any time.Blue light is working mode and red light is network failure. Precautions: When adding the lock and gateway on the phone, please make sure that they are in the same WiFi network. The distance between the gateway and the smart door lock is no more than 32'(10m), otherwise the connectivity of the gateway will be affected. So we recommend that the number ratio of locks to gateways is 1:1. Product Guarantee: Ruveno smart door lock was provided excellent customer service, 30 days return service and 360 days warranty and Free Life-time Technical Support. Any problem about the electronic lock, pls feel free to let us know. Your 100% satisfaction is our eternal motivation, Manufacturer: Ruveno