Key Detector Compatible
Attach the optional Key Detector to your car key ring or other easily misplaced items and forget about ever losing them ever again. Using any of your telephone handsets, you can activate the Key Detector's beeping alarm and quickly track down your lost keys. Key Detector's powerful range finds objects up to 200 yards away so you'll find whatever's lost whether it's upstairs, in your car or in the yard. You can register up to four Key Detectors and give each a distinctive name, like Dave's keys, Sharon's keys, etc.