Yiroka Wireless Smart Doorbell Waterproof Door Bell with 58 Chimes, 4 Levels Volume, 1000ft Long Range for Seniors/ Elderly/ Patients

• [ Wireless Guard ] 1 Receiver 1 Call Button. Allow caregivers and residents to be free while ensuring that help is still available at the touch of a button, ideal for elderly, seniors, patients, disabled.
• [ Smart Ringtones ] The receiver of caregiver pager has 58 ringing tones to choose from and 4 level adjustable volume from 25db to 85db. Easy use by plug the receiver into an electrical outlet
• [Weather Resistant and Energy-Saving]  Both call button and receiver are waterproof and dustproof. Whether you install it in the washroom or take it outside on a rainy day, you don't have to worry about this caregiver pager getting wet
• [Easy to Install] This wireless doorbell has been paired before it reaches you. It can be set up in under a minute by simply plugging the receiver into the socket, eliminating the need for wiring or electrician installation.

Product detials:
1.Standby power: within 3W
2.Frequency: 433MHZ RF operating frequency
3.Voltage: AC 110-220V
4.Working temperature: -20-50 Celsius Degrees
5.Battery: 12V 23A battery
6.Distance: 300 meters from the open distance
7.Controllable volume: 25-85dB