Shop Motion Welcome Door Bell With Music or "DingDong" Battery or Power Supply

• It designed for using in shop, with "DingDong" sound. And also has 32 short music and welcome sound in Chinese.
• It uses AAA battery(included) or power supply (not included).
• It designed to stick on to the wall, or screw into the wall.
• The volume can be changed.

Features: 

• The button at the back to change from Chinese Voice to Alarm (DingDong) or Music.
• Sound change button located at the back.
• Volume change button located at the back.
• ON/OFF button located at the back.
• Battery tank located at the bottom.
• Power port located at the back. (Power cable and plug is not included)
• The bell can be sticked on the wall with mounting plate.
• The bell can be screwed into the wall with mounting plate.