Features:

New and high quality
Easy to install
powered by 2 pieces AAA 1.5V batteries (not included)
Protect your home or office

Specifications:
Material: Plastic & Electronic Parts
Color: White
Volume: 90db
Net weight: about 35g
Note:
Place the cover in place.
ha un comodo interruttore on / off, quindi puoi impostare l'allarme su quando non si desidera usarlo.