- Wireless electronic door chime DC type

- Learning code matching of chime and transmitter to avoid interference

- Wireless working range in 150 meters in open area

- 36 pcs high quality melodies

- Sound volume can be adjusted in 4 level from 0 to 85dB

- Flash light when ringing

- Each chime can match with 16 transmitters.

- Transmitter IP44 prof for outdoor using.

- Frequency in 433MHz

- Power of chime: 3pcs AA size battery