ST-98

—— ST-98B ——
- Wired Electronic DC door chime
- 8 pcs high quality melodies with LED lighting
- 4 level sound volume control from quiet to 95dB
- Power by 3pcs AA/LR6 battery

—— ST-98D ——
- Wired Electronic AC door chime
- 8 pcs high quality melodies with LED lighting
- 4 level sound volume control from quiet to 95dB
- Power by 220V-240V AC

—— ST-98T ——
- Wired Electronic AC door chime with build-in transformer
- 8 pcs high quality melodies with LED lighting
- 4 level sound volume control from quiet to 95dB
- Power by 220V-240V AC, internal operation in 8V