Open area: range 300 m barrier-free zone 300 m extremely long connection range. A strong and stable radio signal ensures that you can clearly hear the doorbell even a few rooms or another floor away.

This signal can pass through obstacles well. This wireless doorbell can be used in an apartment, office, office or garden. 4Leel olume wireless doorbell receiver and 45 ringtones have 5 adjustable volume levels from 0 dB to 110 dB. 55 sound options, from classic ringtones to rhythmic melodies for all conditions.

Waterproof doorbell button: The wireless doorbell has IP44 protection technology, suitable for outdoor use, resistant to bad weather and its operating temperature range is -22 F to 158 F. The radio doorbells can withstand the toughest weather conditions. hard

Wide applicability: It can not only be used as a doorbell, but also as a pager for pregnant women and the elderly. One-click calls, convenient for family members to serve them in time.