OPERA Wireless Doorbell DC, 90dB battery black OR-DB-YK-118

• used for sound signaling
• battery-powered receiver
• battery-powered button (included) )
• ideal as a doorbell or paging device
• 48 built-in polyphonic ringtones to choose from
• 4-level ringer volume adjustment
• learning system (additional transmitters and receivers are logged in automatically)
• the number of bells and buttons cooperating with each other can be increased as needed
• waterproof bell button
• no bell installation required
• useful at home, in the company, in public buildings or people in need of care

Technical parameters:

• power supply: receiver: 3xAAA (not included, transmitter: A23 12V (included)
• range: max 100 meters (in open area)
• volume: 50-90 dB
• ingress protection: receiver: IP20, transmitter: IP44
• frequency: 433.92 MHz
• dimensions: 120 x 87 x 35 mm (width/height/ main)