- Mechanical DC ding-dong door chime / Mechanical AC ding-dong door chime

- White cover / white or black base

- Ding-Dong sound 80dB 50/60Hz

- Product dimension: 11.6x11.6x4.8cm

- Operating power request: 1pcs 9V.6LR61 size batteries for chime or external transformer 8V-12V / Direct to main power 220-240V

- With short-circuit self protection by PTC