Thank you very much for viewing! SwitchBot Smart Lock Alexa Smart Key Smart Home - SwitchBot Front Door Auto Lock Key Operate with Smartphone Alexa Google Home Siri LINE Clova Compatible Remote Operation No Construction Easy Installation Security Measures Product: SwitchBot Lock Color: Black Retail Price: 11,980 yen Included Items: Used for approximately 1 year, the included items are as shown in the photos. I purchased and used this because carrying keys was a hassle. It's very convenient because you can open it with the app, so I highly recommend it! Please understand that this is a used item before purchasing.