Self-generating Wireless Doorbell

Product information:

Power type: 110-220 
Scope of Application: open ground is greater than or equal to 150 meters, indoor is greater than or equal to 30 meters
Style: Modern
Color: White
Purpose: doorbell
Size: receiver 78 x54x 45mm 66 x40x20mm
Material: Plastic

Packing list:

Plastic doorbell x 1pc