[Dual Alert ]Smart dual alert system with LED light & 110db sound notifications. [Real-Time Movement Monitoring]Advanced wireless motion sensors detect bed exits & room departures. Simply place under bed or by doorway for instant alerts when seniors attempt to move unsupervised. [500FT Extended Range Coverage]Industry-leading 500+ ft wireless range allows caregivers to monitor from anywhere - bedroom to backyard. Receiver features portable clip design for easy carrying throughout the home. [Quick Setup & Self-Testing]Pre-paired for instant use - activates in 20 seconds with self-test confirmation (5 breathing flashes). No technical skills required - for immediate elder care deployment. [Customizable Alert Settings]Personalize with 17 alarm tones & adjustable volume (0-110db). Includes silent vibration mode for nighttime use. Color: White Material: plastic Package Contents: 1 x host 1 x sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.