Compatibility - Works for Tuya locks Remotely Control - Unlock the door remotely even far away from your home, which is no longer to be limited by the Bluetooth unlocking distance. Please note the distance between the gateway and the smart door lock is no more than 32 ft to ensure a good signal connection. And your smart phone and the gateway must be connected to the same Wi-Fi network when paring the gateway. Multifunction - Works with Alexa, reach to voice control via Alexa device.