Self Powered Waterproof Wireless Doorbell Smart Home

Itercom: No
Connection Type: wireless
Alarm: Yes
Power: Dry battery
Feature: None
Display: None
Item Type: Wireless Doorbell
Model:: Self-powered wireless doorbell
Color:: black/white optional
Voltage:: AC110~240V50/60hz
Specification:: American/European
Maximum volume:: 100DB
Volume adjustment:: 4 levels of volume (high, medium, low, mute)
Ringtones:: 38 chords are optional
Remote control distance:: 150M (in an open and unobstructed environment)
Waterproof rating:: IPX4 (daily waterproof)
Environment temperature:: -10~45℃