Wireless Pager Nurse Alarm System --- Smart Home Alarm System Call Button, Vibrating Pager for Home/Pregnant Women/Elderly/Patients. > Life Alert: Pager calls with 60 tones to choose from within an operating range of 262ft/80m in open areas 5 adjustable volume levels from 0dB to 110dB Easy to use (plug and play) Plug the receiver into a power outlet SOS LIFE IP55 waterproof alarm collar button includes a neck strap --- transmitter/talk button. Easy to carry, it can be carried in a pocket or hung around the neck as a pendant. The call transmitter/button is waterproof. Screaming Attention LED Flash --- Wireless Paramedic Pager This idea is suitable for paramedics and patients/elderly/pregnant women/children while looking for home helper like kitchen/laundry room, it is closed and noisy and can be installed separately. Make sure the patient/senior's call can be heard. Ideal for the elderly. Elderly pager radio call button. Note: The data is manual measurement, please allow 1-9cm error, due to the light and screen differences , there will be a certain color difference, the specific received in kind prevail.