https://ring.com › Halloween › Sale
广告Limited-Time Offer: $30 Off Ring Battery Doorbell Plus. Hurry, Halloween Sale Ends 10/31. Secure Your Home for Less—$30 Off Battery Doorbell Plus During Ring's Halloween Sale.
Dedicated 24/7 support · Affordable protection · 30D money back guarantee
Types: Doorbell Camera, Outdoor Security Camera, Chime, Outdoor Securit…
Ring's New Doorbell Has 1080p Video & A Swappable Battery –
TechCrunch