The SafeAwake does everything you would expect it to. There's a test button, an automatic shutoff and restart, a turn-on indicator light, a battery backup in the event of electrical failure; and even a system to tell you if your batteries are weak. The SafeAwake works anywhere. It's light, compact, portable and simple. No other device offers the safety features and benefits of the SafeAwake. Fast and easy setup for homes, hotels, motels, hospitals, senior citizen residences, independent and assisted care facilities, in fact, everywhere that people sleep. Although every bed should have a SafeAwake, it is critically vital for senior citizens and especially those that are hearing impaired.