1. "Ding Dong" sound wired mechanism door bell;

2. Easy installation, 220V electricity can be directly used to work;

3. Crisp metal percussion "Ding Dong" sound, melodious voice, feeling full, residual sound of wind around, so got used to electronic music as you hear Xianle;

4. Doorbell with overheating protection, when the coil temperature reaches ratings, they will cut off the power supply; Temperature down automatically return to normal after the bell;

5. Machine through 1500V 0.5mA 3s pressure test without leakage, safe and reliable, please rest assured to use;

6. Products have passed RoHS certification, green, environmental pollution, to ensure you and your family's health.