1. Super long standby time.
2. Built-in rechargeable battery
3. Support voice change, women's voices into men's voices
4. Convenient installation, can be glued, can be perforated

Name: Visual smart doorbell
Battery capacity: 800mA
Power input: 5V=2A
Use time: more than 6 months of normal use
Charging time: 1.5 hours
Intercom type: color visual
Item Type: Video Doorbell
color:Black
Material:plastic