Connection Type: Wireless
Display: None
Alarm: No
Itercom: No
Feature: None
Power: Electric Supply
Item Type: Wireless Doorbell
Brand Name: KERUI
Working voltage: AC 100-220V
Wireless frequency: 433MHz
Feature 1: 32 music options
Feature 2: Waterproof Touch Button Doorbell
Feature 3: Can learn up to 30 transmitters, no loss of power
Feature 4: 4 levels adjustable volume Doorbell
Specifications: UK,AS,EU