SECRUI Doorbell, Wireless Doorbell with 2 Receivers Easy installation, Adjustable Volume, 58 Chimes, Colorful LED, 1000Ft Range, M520+F55, Black

Loud Enough Doorbell for Anywhere – Adjustable volume and mute mode: 0 to 120 dB, 58 optional Melodies. Whether upstairs or basement. Memory function makes the doorbell remember the last ringtone and volume, no need to reset even if after a power outage.
Long Range Remote Wireless Doorbell – Ultra-long wireless 300M range with waterproof & colorful LED flash light button. Wireless doorbells without any cables. The strong and stable wireless signal ensures that you will never miss any visitors even if you are in a big house with several rooms.
Easy Installation & Support Expandable – The plug in doorbell already paired before factory and different transmitters can be set to different tunes. Expandable up to 20 accessories.
Waterproof Wireless Doorbell Chime – Multiple use for home, office, garage, store, office, apartments, villas, garden, hospital, school the disabled people etc.
Our wireless doorbells for home have passed the CE,RoHS,FCC Certified. If you have any questions in use, welcome to contact us freely. You will be supported by our 7 days x 24 hours online customer service.(The button only lights up when you press it)