Connected Doorbell and Video Door Phone - Universal - Automatic Waterproof Wireless Doorbell Wireless Door Bell Ring Night Lamp Without Battery Plug Home Button Receiver | Doorbell (White) Highlights Universal Automatic Waterproof Wireless Doorbell Wireless Door Bell Ring Night Lamp Without Battery Plug Home Button Receiver | Doorbell (white) Self-powered wireless wireless night bell doorbell doorbell without battery plug in battery button receiver | Doorbells (white) Name: Smatrul Origin: CN (origin) Doorbell Type: Wireless Type: Doorbells Model Number: M688WW Power Source: AC Power Source: Self-powered Power Source: EU Plug Waterproof: IP44 Battery: No battery required Mode: 1.Sound Only 2.Flash only 3.Sound & Flash 4.Sound & Light on Receivers Rated Voltage: AC 110V 220V 240V Ringtones: 58 Music 0dB-100dB USAGE PREMISES: HOME OFFICE VILLA SCHOPE SCHOOL Factory Receiving distance: 150m Remote (in the open area) Features 1: Memory function Features 2: Self-learning code function