Retekess TH103 Caregiver Pager System,Wireless Strobe Siren,3-Level Volume Control,Pull Rope Waterproof Call Button for Home Safety,Seniors,Elderly

3 levels of volume control; mute mode; low volume and high volume modes can be set; suitable for different environment ^^ Fast emergency call; just to press the call button or pull the about 27.5 in length rope; receiver is flashing and beeping; simple and convenient ^^ Match with other products; can use with watch receiver; more convenient to receive the distress signal of elderly; please note that the alarm only works when connected to the power supply and will not work when unplugged ^^ Waterproof call button; alarm sounds when the button is pressed or the cord is pulled down; loud 110 decibel alarm; it can be used not only for home but also for classroom; warehouse; office; business ^^ Range up to 164-262ft in open area; caregiver pager is useful upstairs and downstairs in a house; walls or other objects may decrease operating distance