Wireless doorbell, open space range up to 80 m, waterproof switch, wireless transmission (frequency 433MHz), adjustable volume, sound level 69–89 dB, 36 chime sounds to choose from, the number of cooperating switches can be increased as needed, learning system (automatic connection), no doorbell installation required.

• Additional features: learning system
• Receiver power source: battery, 2 x AA
• Receiver dimensions - width: 67 mm
• Number of chime sounds: 36
• Receiver dimensions - height: 102 mm
• Receiver dimensions - depth: 27 mm
• Chime volume level (dB): 69-89
• Visual signaling: No
• Transmitter dimensions - height: 88 mm
• Transmitter dimensions - depth: 16 mm
• Protection rating (IP): IP44
• Transmitter power source: battery, 1 x CR2032
• Battery included: Yes
• Transmitter dimensions - width: 36 mm