Key Finder With 5 Receivers, Dulcii Intelligent Wireless RF Item Wallet Locator Remote Control With LED Light (black) One transmitter, five receivers, very suitable for lot applications both at home and office; Intelligent key locator with LED on transmitter right side to help light in the dark; Find lost keys and other lost items quickly just with one press; the beep sound (medium volume but not loud) will help find the lost items quickly; Contains one transmitter and five receivers in different colors; all five receivers work independently and covers a range of 10m-30m; Receivers require CR2032 batteries (included) and transmitter requires one 12V 27A battery (included)