Limited stock. eBay with vipoutlet has the open box Wyze Bluetooth / WiFi Smart Lock + Wyze Gateway (WLCKG1) for $68 - 10% off with coupon code VIPOUTLETMAY26 [Exp 5/31] = $61 with free shipping. 

Let's you remotely lock and unlock your door, work with Alexa and works with Wyze security systems. Requires 4 AA batteries (included).