Wireless Smoke-Alarm System

2-pack starter kit of First Alert ONELINK enabled smoke alarms. They automatically communicate with other ONELINK enabled alarms when installed creating a wireless safety network. Features include voice alarm with programmable location. Programmable with up to 11 locations(such as kitchen). When alarm sounds (if programmed for kitchen), it will say Warning: Evacuate, smoke in kitchen. If other ONELINK alarms are located throughout the house, they will also signal Warning: Evacuate, smoke in kitchen. Photoelectric smoke alarm reduces nuisance alarms. Alarm and low battery silence feature. 2 "AA" batteries and detailed instructions. Vermont and Oregon approved.