Video Doorbell Wireless Doorbell Camera with Chime,1080P Ring Doorbell, HD Nigh
Dingdong Machine Size: Approx. 5.5x4.2x2.5cm / 2.2x1.7x1.0in. 1 x Indoor Dingdong Machine. 【100% Wireless, Portable & Easy to Install and Set up】Easily plug receiver into an electrical outlet (no batteries required for main receiver).