Ding-dong door bell ST-89B
Ding-dong door chime ST-89B with 12 melodies choosing by button on right side of chime.70dB or 80dB of volume adjust by button on right side of chime.Operating power requestion: 4pcs ‘AA’ alkaline batteries for chime.
Ding-dong door chime ST-89D with 12 melodies choosing by button on right side of chime.70dB or 80dB of volume adjust by button on right side of chime.Operating power requestion: Directly to 110V or 220V main power.
| Brand name | Anssin |
|---|---|
| Model Number | ST-89B,ST-89D |
| Power Source | Battery |
| Loudness Level | 80dB |
| Frequency | 433MHz |
| Power of transmitter | 1pcs 12V/23A battery |