sensor door bell
1) Main unit adopts quality music IC, high-quality speaker, and pleasant sound
2)any languages is allow

sensor door bell 

use AA battery*3

It is so zeal that suit for the public,shops,family and office.When guests come in closer to the door,it will say“welcome”,thereafter guesters feelling warm and respected,and ease atmosphere.
The new style multi-purpose door bell has  wirless light-operated ,automatic identification,
Optical distance is 1 to 10 metres.The voice can be set up to any languages.

Recording time is about 6 second.

Sensor doorbell feature elegant shape, unique European-style design, noble and graceful. Outer cover is made of quality PC mater
Sensor doorbell Features:
1) Makes sure not to fix it too close to metal articles, and avoid rainwater
2) It will not consume power when it is of inactive state, and battery will last
one year (20 times/day)
3) Main unit adopts quality music IC, high-quality speaker, and pleasant sound