The P4010ACSCO-WCA is an AC/DC powered smoke and carbon monoxide (CO) alarm with 10-Year battery backup and Wireless interconnect capability. The voice warning feature accompanies the 85dB tone during an alarm event, and helps reduce confusion with verbal announcements such as “Replace Alarm" at end of alarm life, and “Hush mode activated" when a nuisance alarm is silenced. The three-Colour LED ring helps users quickly determine standby, alarm, or error mode of the alarm.