Portable and Plug-In Door Chime set for use all around your home. The set extends your door chime system, so for example you can have the plug-in unit permanently in a hallway and the portable unit to take with you anywhere in the home or garden. The Door Chimes are wireless, so no wiring is required, and with an extensive operating range of up to 150m, you never have to miss a visitor or delivery. Features: Portable unit can be used wall mounted or free-standing.Plug-In unit simply plugs into any 13A socket Flashing blue LED chime alert lights 30 different chime melodies to choose from.90dB(A) sound output with volume control 3 operating modes - chime sound only, LED alert light only and both together 3 operating modes - chime sound only, LED alert light only and both together Water resistant bell push (IP44 rated) with blue LED indicator light and nameplate Portable Chime unit powered by 3 x AA batteries (not supplied).Bell push powered by 1 x CR2032 button cell battery (supplied) Co