The XY4+ 2 pack contains 2 individually packaged XY4+ finders and comes in an assortment of color combinations. The XY4+ Bluetooth Item Finder has the widest range, loudest volume, and longest battery life of any Finder on the market. This device is perfect for quickly finding things that may get left behind such as keys, purses, or backpacks. The XY4+ can easily be attached to anything of value and can also be used to find your phone. The XY4+ uses a replaceable battery that can last up to 5 years.