Ilco introduced Chipolo Classic; the solution for keeping track of your keys, purse, bookbag, cell phone, and more. Find your phone… even if it’s on silent! Just double click the Chipolo device and listen for your phone to ring.
This Bluetooth key finder can function in two ways - ring Chipolo from the phone app to locate misplaced items or double press Chipolo to play a melody on a misplaced cell phone, even if the phone is on silent.
More Info: http://www.ilco.us/products/key-blanks-key-accessories/1538250/chipolo.html