TRANSMITTER HELP: Perfect as an alarm for those who need help quickly, such as the elderly, children, people with disabilities, pregnant women or the sick. Simply press the alarm button for quick and thoughtful care without having to shout. It can also be used as a doorbell. EMERGENCY ALARM: We can put it in our pocket or use the necklace (included) to hang it around our neck like a necklace. We can also attach it to the bed or toilet with double-sided tape so that our parents or children can send signals in time. WATERPROOF SOS TRANSMITTER: The alarm button is waterproof. Acceptable for solids in bed/on the toilet. Acceptable for splashes from meals/soup. And install it in the toilet, applicable to the following places: home, nursing home, clinic, hospital, etc. LONG WIRELESS RANGE: The range is 90 meters in open area. The chime unit has 55 ringtones to choose from. 5 adjustable volume levels from 0 to 110. EASY INSTALLATION: This caregiver transmitter system supports pairing between multiple receivers and transmitters. We can adjust the kits according to our needs.