SwitchBot Smart Lock (Black) Set of 2 Purchased about a year and a half ago and used to unlock with a smartphone. Dual configuration is possible. Operation has been confirmed and can be used without any problems. [Set Contents] SwitchBot Smart Lock (Black) Body: 2 Base metal fittings (※already attached to the main unit): 2 Stickers (unused): 2 Fingerprint removal sheet: 1 Batteries: 4 SwitchBot Sensor: 2 Everything else shown in the photos. No instruction manual. Please check the Switchbot official website. https://www.switchbot.jp/products/switchbot-lock The installation video was helpful. ※There are minor scratches and signs of use. ※Please understand that this item has been stored at home before purchasing. Please consider this item, acknowledging that there may be oversights due to amateur inspection. Please refrain from purchasing if you are sensitive to such issues. ⇒#Urisu まとめ買い (Urisu Bundle)