Heathco Wireless Doorbell-Strobe Light Kit, 100 ft Operating, 3 Tones, White

Strobe chime for hard of hearing or noisy environments, Visible strobe light flashes when the doorbell rings. Transmission range up to 100 feet. Adjustable volume control. Push button with battery included. 3.5" w x 1.75" d x 4.625" h. 3 sound options, Westminster, Ding-Dong and Ding. 75 decibel maximum.