Wireless Voice Intercom Doorbell 2 Way Talk Monitor Unit Smart Home Security (white)

Wireless Voice Intercom Doorbell 2 Way Talk Monitor Unit Smart Home Security (White) Product is shipped; based on main product page image color or size. Wireless Voice Intercom 2 Way Doorbell Talk Monitor Unit Smart Home Security Door Bell | Doorbell (white) Features: * Wireless smart voice doorbell, talk with the visitor via two-way voice intercom, which let you know who is visiting your house and talk to them and let them know I'm coming , please wait. * 1 receiver and 1 push button, talk between receiver and push button via wireless connection in a wide range (outer bell: 200m, inner bell distance: 5-50m without any obstacles), stable transmission signal to make voice clear. * Receiver supports rechargeable battery, transmitter supports 3 alkaline batteries up to ; 4 months approaching (3*transmitter alkaline batteries are not included). * It is widely used; for office and home, know who is at outdoor and convenient for the elder. which needs much more time to open the door, very