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Features: Transmitter waterproof.45 songs polyphonic ringtones.4 gear volume adjustment (including mute).Widely using in home, offices, hotels, etc.Simple to operate and convenient to use.200 meters long distance signal transmission(in an open place without obstacles).Digital chip precise control, a..

Features:   - 45 polyphonic ringtones.- 4 gear volume adjustment (including mute).- Widely using in home, offices, hotels, etc.- Simple to operate and convenient to use.- The transmitter has IP44 waterproof function.- 200 meters long distance signal transmission.(in an open place without obstacles)-..

Features:1. Voice call, video intercom UBOX stable and smooth APP system2. When you are away, your home is in your hands. The mobile phone can be woken up for active viewing, monitoring the home, pressing the doorbell to push information, and viewing it in real time.3. 166° super wide angle, small ..