Never miss a visitor again with a Honeywell Home DW915SG wired and wireless doorbell, thanks to a market-leading 5 year battery life, 100m audible range and 200m wireless range. It comes with Sleep mode so you can relax free from disturbance, while the innovative Halo light will alert you when the doorbell can?t be heard. Link two doorbells together for even greater wireless coverage and peace of mind.