PRODUCT GRADING Refurbished Excellent > Very light scratches and light signs of use > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX Google Nest Video Doorbell (Battery) PRODUCT DESCRIPTION The Nest Video Doorbell lets you see what is happening at your door from anywhere, and get alerts about important activity, like a visitor or parcel delivery.Doorbell power: Rechargeable built-in battery, or doorbell wires (8–24 VAC, 10 VA, 50/60Hz transformer).Doorbell chime: Compatible wired mechanical or digital chime, or new compatible chime/Google Nest speaker or display. PRODUCT INFORMATION ?Google assistant compatible. App needed for use: Google Home app. Operates over mobile internet. Operates over wi-fi. Requires wireless router for use. Temperature sensor. Controls audio and video devices. Motion detector. Suitable for outdoor. Batteries required 2 x Li-Ion. Size H16, W2.4, D4.6cm