ECVISION Smart Caregiver Wireless Caregiver Personal Pager System Emergency Care Alarm Call Button Nurse Alert System -500+ft Operating Range (1 in 1) Alert options include 1. Sound+Light 2. Sound Only 3. Light Only - Bright LED alert light is perfect for those with impaired hearing - System range of up to 500+ ft in open area - 32 melody/alarm sounds to choose ( 23 melody alerts and 9 emergency alerts), 3 level adjustable volume control, and using 16-bit encoding to eliminate interference from other devices Simple to use two call button alarm/alert system for patient and caregiver - Ideal emergency alarm for elderly or disabled to call for help - Simply press either call button to alert the caregiver via the wireless receiver - System range of up to 500 feet in open area Call button can be worn as a pendant, carried on pocket, or placed at bedside - Call button is water resistant - Slimline caregiver receiver can be wall mounted, placed near caregiver, or carried in pocket. Calling device for children: Mothers who want to exert independence of their children from a young age will not hesitate because they just need to press the button for help.Waking up device: It is a very useful calling device for family with parents and children sleeping in separate room. In winter, parents can just press the button without getting dressed and getting up. Includes everything needed for immediate use - One call button, one receiver. The receiver and transmitter with low battery indication.Receiver powered by 3 x AAA batteries(not included); transmitter powered by 1 x CR2032 battery (included).