***** **********Best Quality Guranteed. *****Works with Alexa for voice control (Alexa device sold separately). Wireless requirements- 2.4GH z Wi-Fi network (Connect Wi-Fi Bridge sold separately)*****Control and monitor your door from anywhere. Lock and unlock your door, control keyless access and keep track of who comes and goes, all from your phone*****Secure, code-based home entry*****Accessory for the Smart Lock