Honeywell series 9 chime kits 200m 8tunes 90db halo honeywell dc915s this wireless portable doorbell from honeywell has been manufactured to a high standard with both reliability and quality in mind stylish and compact with superior sound quality this superb doorbell has been perfectly formed for your home and comes with sleep mode among the many other features is the 5 year battery life and innovative halo light alerting you to the presence of a visitor when the doorbell cant be heard