Dual Reminder and Power Supply: This bed alarm system features both LED light and sound alerts. It can be powered by alkaline batteries or via Micro-USB, offering flexible and reliable power options for continuous operation. Efficient Monitoring of Movements: Place the wireless motion sensors under the bed or at doorways to detect movement. The system triggers an alarm when movement is detected, supporting safety monitoring. Extended Wireless Range: The receiver operates within a range of over 500 feet without signal loss, allowing flexibility in placement throughout the home or yard. Ready-to-Use Convenience: The sensor and receiver are pre-paired. After powering on, the system performs a self-test indicated by the LED breathing five times, and becomes operational within 20 seconds. Customizable Alerts: Choose from 17 different alert tones and adjust volume from 0 dB to 110 dB. A vibration mode is available for discreet notification. Color: White Material: Plastic Package Contents: 2 × sensors 1 × receiver Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance is ±1–3 cm.