Doorbell for Large Homes: 1 push button simultaneously trigger 2 receivers. The range of wireless doorbells for home extends over 1000ft in open space. Great for large homes, apartments, offices & classrooms. You’ll never miss a chime!
Multiple Optional Ringtone & Mute Mode: SECRUI wireless doorbell receiver features 58 chimes and 5 levels of adjustable volume(0 dB to 110 dB) to meet your needs for different occasions. LED flash is suitable for the elderly and hearing impaired. The indoor chime can remember your last melody and volume level after closing it; No need to reset the previous settings, really saves your time.
Hassle-Free Installation: This battery wireless doorbell ringer requires no additional wires or tools, all you had to do was plug in the adapter to an outlet and adhere the transmitter to the wall via Double-sided tape or Screws-in. Each transmitter can be paired with up to 20 doorbell receivers.
Waterproof grade: IP44
Receiving distance: 300M Remote (in open area)
Receiver ringtone function: Power failure memory function
Power supply: 110V-220V-240V
Power Source: US/EU/UK Plug AU adapter
Power Source: Battery,AC
Model Number: A10
Doorbell Type: Wireless
Battery mode: 23A12V alkaline battery(not include battery)