Magnasonic Wireless Key Finder for Keychain, Wallet, Phone, Remote Control includes Locator with 4 Receivers - MGWF300 (Pack of 2) Wirelessly helps you locate easy-to-lose items such as keys, phones, wallet, remote control, MP3 player, pet, purse, and much more Each system includes 2 key chain style receivers, 2 thin-plate receivers, a 4-button key chain radio frequency transmitter and a complete set of extra batteries (2 systems included) 4-button color-coded transmitter allows for easy identification of each separate receive Wireless signal locates items from 60 to 80 feet away, even through couch cushions, walls and floors Receiver beeps at a loud 95 decibels, helping you locate your missing item easily and accurately