Specification：
 
Wireless Digital Doorbell Features:

Install a doorbell in seconds, without calling an electrician
16 chime sounds or songs to choose from
Waterproof remote for outdoor use
12V Battery is included for remote use
Remote works up to 80 meters
Ideal for homes, camps and RV'S
Quality product - Satisfaction Guaranteed
Wireless digital doorbell goes with you! Wether you are cooking out in the back yard or up in the attic, you'll never miss your guests. Adhere anywhere in seconds, no electrician required! Digital doorbell is programmable and features sixteen different delightful sounds including chimes, ding dongs, holiday songs & other music.