It has 52 chimes, include common ringtones or pleasant tunes. This feature is only equipped with top-level doorbell. Sound volume & tune: vol can be set to 25dbno noisy class-110dbloudest. We improved the manual and extended 3 seconds to 5 seconds. 2. Wireless doorbell operated at 1000ft / 300me. G. Improved use experience.
Compared to the previous generation of products, we made the following improvements:1. Villa having 5 floors. Led flash: when the button is pressed, the transmitter and receiver flash at the same time with obvious brightness. Outdoor use: transmitter can withstand light rain. Increase new device, make transmitter trigger different tune, etc
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