-[Voice Intercom]Supports voice intercom. When a visitor presses the doorbell button, you can make a voice call via your phone. -[Wiring-Free Installation]This wireless video doorbell is quick and easy to install, eliminating the hassle of wiring. -[Long Battery Life]Built-in rechargeable lithium battery provides 10-12 months of standby time. -[App Remote Control]If you're and someone rings the doorbell, you'll receive a video call (must be in the app interface) and a smartphone notification, regardless of your location. -[Cloud Storage]With viewing angle, when a visitor presses the video doorbell, the doorbell activates, and the app captures their movements and saves them to cloud storage. --[Indoor Ring] When a visitor presses the doorbell, a clear indoor ring tone rings throughout ., Weight: 0.57430419251 Pounds, Manufacturer: Ounfhtrttk