Lloytron 32 Melody Portable Wireless Door Chime B7015WH A fantastic portable door chime. Take it with you upstairs, downstairs or even in the garden! Never miss a visitor or a delivery ever again. Also it is ideal for people with limited or no hearing as the chime also has a built in strobe light to catch your attention. 100m range 2 level volume control Free standing or wallmountable Large flashing strobe light Requires 3xAA batteries