Model:P189189-WW; What's in the box:English and Chinese Manual, 2Indoor Unit, 1Outdoor Unit; Connection:Wireless; Kit Configuration:One to Two Doorbell; Additional features:Intercom, Waterproof; Answering mode:Music, Hands-free; Primary Application:Doorbell, Outdoor, Indoor, Living Room / Dining Room; Listing Date:10/10/2020