Each set contains 2 Call Bell that can be placed in the patient's toilet and bedside + a speaker that can be placed in the living room.
Power Source: Battery, DC
Doorbell Type: Wireless
Volume: 4 levels
Remote Range: 200 meters in open area
Transmitter battery type: 23A12V alkaline battery (does not include)
Receiver battery type: 3*AAA batteries (does not include)
Applicable Space: Home/Office/Villa/Hotel/Hospital/Apartment