Motion Sensor Door bell

1, Also knowns vistor's chime. Music comes out automaticly when someone pass throght it,used at shops, supermarket to welcome guests
2, When the switch is put on"music", there are ten music to be chosen;
3, When the switch is put on"voice", it will sends out"hello, welcome";

4, 8 language say" hello", included: English, Spanish, French, Portuguese, Russian, Arabic;
5, Power supply: 3*AAA or adaptor(not included);
6, Unit size: 10.5*6.1*4.1cm.